Patent US3129808A successfully refreshed from Google Patents.
US3129808A
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US
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Assignee: Barnes Hind International Inc
•
Filing: 1961-05-03
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Granted: 1964-04-21
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Expires: 1981-05-03
Abstract
No abstract record available.
Inventors
- 👤 Robert H Amen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:33
CPC Classifications
A; A45; A45C; A45C11/00; A45C11/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1413907A
Cited
US2049977A
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US2175993A
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US2297326A
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US2620938A
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US2990079A
Cited
US3010596A
Cited
US3070105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |