Patent US2805004A successfully refreshed from Google Patents.
US894897A
Expired / Lapsed
US
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Combined steam power and heating apparatus.
Assignee: OSBORNE STEAM ENGINEERING Co
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Filing: 1903-11-23
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Granted: 1908-08-04
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Expires: 1923-11-23
Abstract
No abstract record available.
Inventors
- 👤 Eugene F Osborne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:43
CPC Classifications
F; F24; F24D; F24D1/00; F24D1/04; F24D2200/00; F24D2200/16; F24D2200/26; Y; Y02; Y02E; Y02E20/00; Y02E20/14
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) | 1911-08-04 | 1912-02-03 | 1912-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-08-04 | 1916-02-03 | 1916-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-08-04 | 1920-02-03 | 1920-08-04 | $7700.00 | Window Closed / Lapsed |