US2689840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure sealing gaskets
Assignee: OI Glass Inc
•
Filing: 1952-08-26
•
Granted: 1954-09-21
•
Expires: 1972-08-26
Abstract
No abstract record available.
Inventors
- 👤 Charles W Husum
- 👤 Jack M Wheaton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:50
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A SEALING GASKET COMPOSITION FOR SHEET METAL CAPS USED IN CLOSING BOTTLES AND JARS, WHICH COMPRISES ABOUT 100 PARTS BUTADIENE ACRYLONITRILE RUBBER; ABOUT 3 PARTS SULPHUR; ABOUT 5 PARTS ZINC OXIDE; ABOUT 20 PARTS PLASTICIZER; ABOUT 1 PART STEARIC ACID; ABOUT 1 PART ACCELERATOR; ABOUT 130 PARTS OF CARBON BLACK COMPOSED LARGELY OF DISCRETE ISOLATED PARTICLES AND ABOUT 20 PARTS OF A CHAIN-LIKE CARBON BLACK.
Claim 2
Dependent Claim
65 words
A SEALING GASKET COMPOSITION FOR SHEET METAL CAPS USED IN CLOSING BOTTLES AND JARS, WHICH COMPRISES ABOUT 100 PARTS BUTADIENE ACRYLONITRILE RUBBER; ABOUT 3 PARTS SULPHUR; ABOUT 5 PARTS ZINC OXIDE; ABOUT 20 PARTS PLASTICIZER; ABOUT 1 PART STEARIC ACID; ABOUT 1 PART ACCELERATOR; ABOUT 130 PARTS OF CARBON BLACK COMPOSED LARGELY OF DISCRETE ISOLATED PARTICLES AND ABOUT 20 PARTS OF A CHAIN-LIKE CARBON BLACK.
References Cited (Backward Citations)
US2594165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-20 | 1958-03-22 | 1958-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-20 | 1962-03-22 | 1962-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-20 | 1966-03-22 | 1966-09-21 | $7700.00 | Window Closed / Lapsed |