Patent US2622776A successfully refreshed from Google Patents.
US2701221A
Expired / Lapsed
US
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Triply laminated rubber structure
Assignee: Standard Oil Development Co
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Filing: 1952-04-02
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Granted: 1955-02-01
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Expires: 1972-04-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert E Clayton
- 👤 Robert M Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:49
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/12; C08J5/121; B; B32; B32B; B32B25/00; B32B25/04; B32B25/08; B32B25/16; B60; B60C; B60C11/00; B60C11/0041; B60C11/005; C08J2309/00; C08L; C08L23/00; C08L23/02; C08L23/18; C08L23/20; C08L23/22; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31826; Y10T428/3183; Y10T428/31833; Y10T428/31837; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/31917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
AN ARTICLE OF MANUFACTURING COMPRISING A FIRST BODY OF A LOW TEMPERATURE INTERPOLYMER OF A MAJOR AMOUNT OF ISOBUTYLENE WITH A MINOR PROPORTION OF A CONJUGATED DIOLEFIN, THE INTERPOLYMER BEING CHARACTERIZED BY A LOW UNSATURATION WITHIN THE RANGE OF AN IODINE NUMBER BETWEEN 0.5 AND 50, A MOLECULAR WEIGHT ABOVE 20,000 AND REACTIVITY WITH A CURING AGENT TO YIELD AN ELASTIC PRODUCT, A CEMENT LAYER OF THE SAME INTERPOLYMER ADHERENT TO ONE SIDE THEREOF AND HAVING SUBSTANTIALLY THE FOLLOWING COMPOSITION:
Claim 2
Dependent Claim
80 words
AN ARTICLE OF MANUFACTURING COMPRISING A FIRST BODY OF A LOW TEMPERATURE INTERPOLYMER OF A MAJOR AMOUNT OF ISOBUTYLENE WITH A MINOR PROPORTION OF A CONJUGATED DIOLEFIN, THE INTERPOLYMER BEING CHARACTERIZED BY A LOW UNSATURATION WITHIN THE RANGE OF AN IODINE NUMBER BETWEEN 0.5 AND 50, A MOLECULAR WEIGHT ABOVE 20,000 AND REACTIVITY WITH A CURING AGENT TO YIELD AN ELASTIC PRODUCT, A CEMENT LAYER OF THE SAME INTERPOLYMER ADHERENT TO ONE SIDE THEREOF AND HAVING SUBSTANTIALLY THE FOLLOWING COMPOSITION:
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-31 | 1958-08-02 | 1959-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-31 | 1962-08-02 | 1963-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-31 | 1966-08-02 | 1967-02-01 | $7700.00 | Window Closed / Lapsed |