Patent US3134688A successfully refreshed from Google Patents.
US3134688A
Expired / Lapsed
US
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Pigmented synthetic rubber coating
Assignee: Heresite and Chemical Co
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Filing: 1960-09-27
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Granted: 1964-05-26
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Expires: 1980-09-27
Abstract
No abstract record available.
Inventors
- 👤 Charles H Hempel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:12
CPC Classifications
C; C09; C09D; C09D121/00; C09D121/02; C09D17/00; C09D17/004; C09D17/007; C09D17/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |