US1668782A
Expired / Lapsed
US
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Method of making rubber bladders
Assignee: PARAMOUNT RUBBER CONS Inc
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Filing: 1924-09-20
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Granted: 1928-05-08
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Expires: 1944-09-20
Abstract
No abstract record available.
Inventors
- 👤 Roberts Fred Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:53
CPC Classifications
B; B29; B29D; B29D22/00; B29D22/02; B29C; B29C65/00; B29C65/02; B29C65/74; B29C65/743; B29C65/7441; B29C66/00; B29C66/004; B29C66/01; B29C66/03; B29C66/038; B29C66/0384; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/20; B29C66/24; B29C66/242; B29C66/40; B29C66/41; B29C66/43; B29C66/432; B29C66/4326; B29C66/70; B29C66/71; B29C66/73; B29C66/737; B29C66/7375; B29C66/73751; B29C66/73752; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81427; B29C66/816; B29C66/8167; B29C66/82; B29C66/824; B29C66/8242; B29C66/83; B29C66/832; B29C66/8322; B29C65/48; B29C65/50; B29C65/5042; B29C66/2422; B29C66/24223; B29C66/47; B29C66/81411; B29C66/81415; B29L; B29L2022/00; B29L2022/02; B29L2022/022; B29L2031/00; B29L2031/52; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1054; Y10T156/1062; Y10T156/1066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1931-05-08 | 1931-11-07 | 1932-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-05-08 | 1935-11-07 | 1936-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-05-08 | 1939-11-07 | 1940-05-08 | $7700.00 | Window Closed / Lapsed |