US2764008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas lighter control unit
Assignee: Individual
•
Filing: 1951-03-26
•
Granted: 1956-09-25
•
Expires: 1971-03-26
Abstract
No abstract record available.
Inventors
- 👤 Francis E Gruber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:32
CPC Classifications
F; F23; F23Q; F23Q2/00; F23Q2/16; F23Q2/162; F23Q2/163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1947586A
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AT157429B
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US2034750A
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US2153432A
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AT156987B
Cited
GB600645A
Cited
US2486133A
Cited
US2515733A
Cited
US2551688A
Cited
US2620643A
Cited
US2608081A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |