US1185576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heater attachment for range-boilers.
Assignee: CARL Y SEMPLE
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Filing: 1915-10-29
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Granted: 1916-05-30
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Expires: 1935-10-29
Abstract
No abstract record available.
Inventors
- 👤 George B Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:21
CPC Classifications
F; F24; F24H; F24H9/00; F24H9/12; F24H9/13; F24H9/133
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) | 1919-05-30 | 1919-11-29 | 1920-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-05-30 | 1923-11-29 | 1924-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-05-30 | 1927-11-29 | 1928-05-30 | $7700.00 | Window Closed / Lapsed |