US2832097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of cork composition products
Assignee: Armstrong World Industries Inc
•
Filing: 1955-09-28
•
Granted: 1958-04-29
•
Expires: 1975-09-28
Abstract
No abstract record available.
Inventors
- 👤 George E Ehle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:07
CPC Classifications
C; C08; C08L; C08L97/00; C08L97/007; Y; Y10; Y10S; Y10S29/00; Y10S29/031
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN A METHOD OF MAKING CORK COMPOSITION, THE STEPS COMPRISING FEEDING PARTICLES OF CORK OF 1/8" MESH SIZE OR LARGER BETWEEN ROTATING ROLLS, COMPRESSING SAID PARTICLES IN THEIR PASSAGE THROUGH THE NIP BETWEEN SAID ROLLS TO ABOUT 10% OR LESS OF THEIR ORIGINAL VOLUME ON AN AVERAGE, WHILE RETAINING THE MASS OF SUBSTANTIALLY ALL OF SAID INDIVIDUAL PARTICLES UNDIMINISHED THROUGH SUBDIVISION OF SAID PARTICLES DURING THE COMPRESSING STEP, FORMING A MOLDED MASS, THE CORK COMPONENT OF WHICH COMPRISES SAID TREATED CORK PARTICLES, BY COATING THE CORK COMPONENT WITH A BINDER AND MOLDING SAID BINDER-COATED CORP PARTICLES UNDER HEAT AND PRESSURE.
Claim 2
Dependent Claim
100 words
IN A METHOD OF MAKING CORK COMPOSITION, THE STEPS COMPRISING FEEDING PARTICLES OF CORK OF 1/8" MESH SIZE OR LARGER BETWEEN ROTATING ROLLS, COMPRESSING SAID PARTICLES IN THEIR PASSAGE THROUGH THE NIP BETWEEN SAID ROLLS TO ABOUT 10% OR LESS OF THEIR ORIGINAL VOLUME ON AN AVERAGE, WHILE RETAINING THE MASS OF SUBSTANTIALLY ALL OF SAID INDIVIDUAL PARTICLES UNDIMINISHED THROUGH SUBDIVISION OF SAID PARTICLES DURING THE COMPRESSING STEP, FORMING A MOLDED MASS, THE CORK COMPONENT OF WHICH COMPRISES SAID TREATED CORK PARTICLES, BY COATING THE CORK COMPONENT WITH A BINDER AND MOLDING SAID BINDER-COATED CORP PARTICLES UNDER HEAT AND PRESSURE.
References Cited (Backward Citations)
US2051628A
Cited
US2719329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |