Patent US3471352A successfully refreshed from Google Patents.
US3471352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of sheet material
Assignee: Dunlop Rubber Co Ltd
•
Filing: 1965-11-30
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Granted: 1969-10-07
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Expires: 1985-11-30
Abstract
No abstract record available.
Inventors
- 👤 Thomas Andrew Brooke
- 👤 Peter Michael Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:07
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/24; C08J3/247; B; B29; B29C; B29C35/00; B29C35/02; B29C35/12; B29C35/14; B29D; B29D29/00; B29K; B29K2007/00; B29K2009/00; B29K2009/06; B29K2027/00; B29K2027/06; B29K2105/00; B29K2105/06; B29K2105/08; B29L; B29L2031/00; B29L2031/709
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2280771A
Cited
US2388824A
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US2495170A
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US2545370A
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US2739351A
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US2865790A
Cited
US3190998A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |