Patent US3491847A successfully refreshed from Google Patents.
US3491847A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1967-06-15
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Granted: 1970-01-27
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Expires: 1987-06-15
Abstract
No abstract record available.
Inventors
- 👤 Thomas P Abbott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:37
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/02; F16H57/032; B; B65; B65D; B65D85/00; B65D85/68; B65D2585/00; B65D2585/68; B65D2585/6802; B65D2585/686; B65D2585/6867; F16H2057/02039; F16H2057/02043; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/219
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) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |