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US2663793A
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Assignee: Individual
•
Filing: 1951-06-13
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Granted: 1953-12-22
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Expires: 1971-06-13
Abstract
No abstract record available.
Inventors
- 👤 Ben A Novak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:52
CPC Classifications
F; F21; F21L; F21L14/00; F21L14/02; F21V; F21V17/00; F21V17/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US90069A
Cited
US1806548A
Cited
US641221A
Cited
US1461924A
Cited
US1953623A
Cited
US2225391A
Cited
US2291907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |