Patent US3445050A successfully refreshed from Google Patents.
US2804994A
Expired / Lapsed
US
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Coupling for gas appliance
Assignee: Knapp Monarch Co
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Filing: 1956-04-16
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Granted: 1957-09-03
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Expires: 1976-04-16
Abstract
No abstract record available.
Inventors
- 👤 Richard B Nebinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:25
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/002; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0329; F17C2205/0388; F17C2205/0394
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2683484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |