Patent US2584959A successfully refreshed from Google Patents.
US2584959A
Expired / Lapsed
US
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Cork containing composite sheet material
Assignee: Raybestos Manhattan Inc
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Filing: 1948-09-14
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Granted: 1952-02-05
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Expires: 1968-09-14
Abstract
No abstract record available.
Inventors
- 👤 Alvin M Yocom
- 👤 D Olier George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:08
CPC Classifications
C; C08; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/10; C08K7/12; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/253; Y10T428/31504; Y10T428/3167
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
COMPRESSIBLE, RESILIENT, COMPOSITE, REINFORCED CORK-CONTAINING SHEET MATERIAL COMPOSED OF A PLURALITY OF LAYERS OF FIBROUS ASBESTOS-RUBBER COMPOSITION, AT LEAST ONE OF SAID LAYERS INCLUDING FROM ABOUT 10 TO ABOUT 30 PER CENT BY WEIGHT OF CORK PARTICLES OF FROM ABOUT 10 TO ABOUT 40 MESH SIZE, FROM ABOUT 35 TO ABOUT 70 PER CENT BY WEIGHT OF SAID FIBROUS ASBESTOS AND FROM ABOUT 10 TO ABOUT 20 PER CENT OF SAID RUBBER, AND AT LEAST AN ADJACENT ONE OF SAID LAYERS BEING SUBSTANTIALLY DEVOID OF SAID CORK PARTICLES AND IN REINFORCING RELATIONSHIP TO AND OF RELATIVELY GREATER DENSITY THAN THE CORK CONTAINING LAYER.
Claim 2
Dependent Claim
103 words
COMPRESSIBLE, RESILIENT, COMPOSITE, REINFORCED CORK-CONTAINING SHEET MATERIAL COMPOSED OF A PLURALITY OF LAYERS OF FIBROUS ASBESTOS-RUBBER COMPOSITION, AT LEAST ONE OF SAID LAYERS INCLUDING FROM ABOUT 10 TO ABOUT 30 PER CENT BY WEIGHT OF CORK PARTICLES OF FROM ABOUT 10 TO ABOUT 40 MESH SIZE, FROM ABOUT 35 TO ABOUT 70 PER CENT BY WEIGHT OF SAID FIBROUS ASBESTOS AND FROM ABOUT 10 TO ABOUT 20 PER CENT OF SAID RUBBER, AND AT LEAST AN ADJACENT ONE OF SAID LAYERS BEING SUBSTANTIALLY DEVOID OF SAID CORK PARTICLES AND IN REINFORCING RELATIONSHIP TO AND OF RELATIVELY GREATER DENSITY THAN THE CORK CONTAINING LAYER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |