Patent US2849335A successfully refreshed from Google Patents.
US2849335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Backing for smooth surface coverings and process therefor
Assignee: Congoleum Industries Inc
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Filing: 1956-09-17
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Granted: 1958-08-26
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Expires: 1976-09-17
Abstract
No abstract record available.
Inventors
- 👤 Leon B Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:59
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/61; B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/12; D06; D06N; D06N1/00; D21H17/20; D21H17/33; D21H17/46; D21H17/59; B29K; B29K2105/00; B29K2105/06; B29K2105/12; B29K2105/128; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T428/31815; Y10T428/31819; Y10T428/31823
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
IN A METHOD OF TREATING A FELTED FIBROUS SHEET TO RENDER IT SUITABLE AS A BACKING FOR A SMOOTH SURFACE CONVERING FOR FLOORS, WALLS AND THE LIKE WHICH COMPRISES IMPREGNATING FROM ONE SURFACE OF THE SHEET TO A DEPTH OF ABOUT 20 TO ABOUT 70 PERCENT OF THE THICKNESS OF THE SHEET WITH A DISPERSION IN A VOLATILE SOLVENT OF A SIZING BINDER SELECTED FROM THE GROUP CONSISTING OF BITUMINOUS BINDERS AND ORGANIC RESINUOUS BINDERS THEREBY FORMING A FIRST ZONE IN SAID SHEET AND THEREAFTER IMPREGNATIUNG FROM THE OPPOSITE SURFACE OF THE SHEET TO DEPTH SUFFICIENT TO AT LEAST CONTACT THE FIRST ZONE BUT LESS THAN 90 PECENT OF THE THICKNESS OF THE SHEET WITH AN IMPREGNATING BINDER SELECTED FROM THE GROUP CONSISTING OF BITUMINOUS BINDERS AND ORGANIC RESINUOUS BINDERS THEREBY FORMING A SECOND ZONE IN SAID SHEET, THERE BEING AT LEAST 10 PERCENT GREATER PERCENTAGE OF BINDER IN SAID SECOND ZONE THAN IN SAID FIRST ZONE, THE IMPROVEMENT WHICH COMPRISES UNIFORMLY INCORPORTING IN SAID DISPERSION OF SIZING BINDER A HEAT-HARDENABLE ORGANOPOLYSILOXANE HAVIGN A MOLECULAR STRUCTURE COMPRISING REPEATING UNITS OF THE RADICAL
Claim 2
Dependent Claim
182 words
IN A METHOD OF TREATING A FELTED FIBROUS SHEET TO RENDER IT SUITABLE AS A BACKING FOR A SMOOTH SURFACE CONVERING FOR FLOORS, WALLS AND THE LIKE WHICH COMPRISES IMPREGNATING FROM ONE SURFACE OF THE SHEET TO A DEPTH OF ABOUT 20 TO ABOUT 70 PERCENT OF THE THICKNESS OF THE SHEET WITH A DISPERSION IN A VOLATILE SOLVENT OF A SIZING BINDER SELECTED FROM THE GROUP CONSISTING OF BITUMINOUS BINDERS AND ORGANIC RESINUOUS BINDERS THEREBY FORMING A FIRST ZONE IN SAID SHEET AND THEREAFTER IMPREGNATIUNG FROM THE OPPOSITE SURFACE OF THE SHEET TO DEPTH SUFFICIENT TO AT LEAST CONTACT THE FIRST ZONE BUT LESS THAN 90 PECENT OF THE THICKNESS OF THE SHEET WITH AN IMPREGNATING BINDER SELECTED FROM THE GROUP CONSISTING OF BITUMINOUS BINDERS AND ORGANIC RESINUOUS BINDERS THEREBY FORMING A SECOND ZONE IN SAID SHEET, THERE BEING AT LEAST 10 PERCENT GREATER PERCENTAGE OF BINDER IN SAID SECOND ZONE THAN IN SAID FIRST ZONE, THE IMPROVEMENT WHICH COMPRISES UNIFORMLY INCORPORTING IN SAID DISPERSION OF SIZING BINDER A HEAT-HARDENABLE ORGANOPOLYSILOXANE HAVIGN A MOLECULAR STRUCTURE COMPRISING REPEATING UNITS OF THE RADICAL
References Cited (Backward Citations)
US2295070A
Cited
US2527793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |