Patent US3990397A successfully refreshed from Google Patents.
Patent US1141335A successfully refreshed from Google Patents.
US1141335A
Expired / Lapsed
US
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Safety device for stoves.
Assignee: Individual
•
Filing: 1914-01-19
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Granted: 1915-06-01
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Expires: 1934-01-19
Abstract
No abstract record available.
Inventors
- 👤 William F Hajek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:22
CPC Classifications
F; F24; F24C; F24C3/00; F24C3/12; Y; Y10; Y10S; Y10S70/00; Y10S70/08; Y10S70/58; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7043; Y10T137/7062; Y10T137/7069; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5615; Y10T70/5619; Y10T70/5624; Y10T70/5628; Y10T70/569; Y10T70/5717; Y10T70/5721; Y10T70/5757; Y10T70/5765; Y10T70/577; Y10T70/5774; Y10T70/5779
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1918-05-31 | 1918-11-30 | 1919-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-05-31 | 1922-11-30 | 1923-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-05-31 | 1926-11-30 | 1927-06-01 | $7700.00 | Window Closed / Lapsed |