US2745546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treating packing material
Assignee: Individual
•
Filing: 1954-02-09
•
Granted: 1956-05-15
•
Expires: 1974-02-09
Abstract
No abstract record available.
Inventors
- 👤 Karl Fischer
- 👤 Karl-Heinz Grodde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:45
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/12; B; B05; B05D; B05D5/00; B05D5/08; B29; B29C; B29C41/00; B29C41/02; B29C41/14; B65; B65D; B65D25/00; B65D25/14; B65D65/00; B65D65/38; B65D65/42; B65D85/00; B65D85/70; B65D85/72; D06; D06M; D06M15/00; D06M15/01; D06M15/15; D21H17/00; D21H17/20; D21H17/21; D21H17/24; D21H17/30; B31; B31B; B31B50/00; B31B50/74; B31B50/742; B31B50/745; Y; Y02; Y02W; Y02W90/00; Y02W90/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
METHOD OF PACKING BITUMINOUS SUBSTANCES, COMPRISING IN COMBINATION THE STEPS OF APPLYING TO A SMOOTH SURFACE AN AQUEOUS SOLUTION CONTAINING AT LEAST ONE WATER SOLUBLE ALGINIC ACID DERIVATIVE AND INCLUDING AT LEAST ONE FINELY COMMINUTED FILLER; PRECIPITATING FROM SAID THUS APPLIED AQUEOUS SOLUTION A WATER INSOLUBLE DERIVATIVE OF ALGINIC ACID THEREBY COATING SAID SMOOTH SURFACE WITH SAID WATER INSOLUBLE DERIVATIVE OF ALGINIC ACID AND FILLER; DRYING SAID COATING ON SAID SMOOTH SURFACE THEREBY FORMING A SHEET OF PACKING MATERIAL WHICH DOES NOT ADHERE TO BITUMINOUS SUBSTANCES; AND PACKING BITUMINOUS SUBSTANCES IN SAID THUS FORMED SHEET OF PACKING MATERIAL.
Claim 2
Dependent Claim
98 words
METHOD OF PACKING BITUMINOUS SUBSTANCES, COMPRISING IN COMBINATION THE STEPS OF APPLYING TO A SMOOTH SURFACE AN AQUEOUS SOLUTION CONTAINING AT LEAST ONE WATER SOLUBLE ALGINIC ACID DERIVATIVE AND INCLUDING AT LEAST ONE FINELY COMMINUTED FILLER; PRECIPITATING FROM SAID THUS APPLIED AQUEOUS SOLUTION A WATER INSOLUBLE DERIVATIVE OF ALGINIC ACID THEREBY COATING SAID SMOOTH SURFACE WITH SAID WATER INSOLUBLE DERIVATIVE OF ALGINIC ACID AND FILLER; DRYING SAID COATING ON SAID SMOOTH SURFACE THEREBY FORMING A SHEET OF PACKING MATERIAL WHICH DOES NOT ADHERE TO BITUMINOUS SUBSTANCES; AND PACKING BITUMINOUS SUBSTANCES IN SAID THUS FORMED SHEET OF PACKING MATERIAL.
References Cited (Backward Citations)
US2287849A
Cited
US2435701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |