Patent US2772764A successfully refreshed from Google Patents.
US2772764A
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Assignee: Individual
•
Filing: 1953-09-03
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Granted: 1956-12-04
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Expires: 1973-09-03
Abstract
No abstract record available.
Inventors
- 👤 David B Mcclellan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:07
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/60; B65; B65G; B65G11/00; B65G11/08; B65G11/083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US889023A
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US913948A
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US946969A
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US1486519A
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US1417780A
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US1782734A
Cited
US2258203A
Cited
US2486382A
Cited
US2496504A
Cited
US2601608A
Cited
US2697510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |