Patent US3532537A successfully refreshed from Google Patents.
US3532537A
Expired / Lapsed
US
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Siloxane rubber
Assignee: Midland Silicones Ltd
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Filing: 1968-02-27
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Granted: 1970-10-06
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Expires: 1988-02-27
Abstract
No abstract record available.
Inventors
- 👤 Hugh D Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:17
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/20; C08G77/42; C08G77/44; C08G77/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2934235A
Cited
US2442196A
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US2996479A
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US3021292A
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US3002946A
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US3061565A
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US3079281A
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US3020260A
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US3231532A
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US3308080A
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US3308079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |