Patent US777728A successfully refreshed from Google Patents.
US777728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating-furnace.
Assignee: International Motors LLC
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Filing: 1903-07-03
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Granted: 1904-12-20
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Expires: 1923-07-03
Abstract
No abstract record available.
Inventors
- 👤 James H Haskins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:40
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/62; C21D1/63
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) | 1907-12-20 | 1908-06-20 | 1908-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-12-20 | 1912-06-20 | 1912-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-12-20 | 1916-06-20 | 1916-12-20 | $7700.00 | Window Closed / Lapsed |