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US2854681A
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Assignee: Individual
•
Filing: 1956-10-29
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Granted: 1958-10-07
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Expires: 1976-10-29
Abstract
No abstract record available.
Inventors
- 👤 William H Wells
- 👤 Benedetti Frank J De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:43
CPC Classifications
C; C14; C14B; C14B1/00; C14B1/02; C14B2700/00; C14B2700/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2631314A
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US2538643A
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US2660746A
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US2678462A
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US2670485A
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US2608816A
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US2758334A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |