US2695422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for advancing and working elastomer compounds
Assignee: AT&T Inc
•
Filing: 1951-12-12
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Granted: 1954-11-30
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Expires: 1971-12-12
Abstract
No abstract record available.
Inventors
- 👤 Alvin N Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:18
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/06; H01B13/14; B; B29; B29C; B29C48/00; B29C48/03; B29C48/05; B29C48/06; B29C48/25; B29C48/30; B29C48/304; B29C48/36; B29C48/395; B29C48/445; B29K; B29K2105/00; B29K2105/06; B29K2105/20; B29L; B29L2031/00; B29L2031/34; B29L2031/3462
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US484777A
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US817080A
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US1294008A
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US1516841A
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US1553362A
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US1802605A
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US1978163A
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US2469999A
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US2553076A
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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) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |