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US1296799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam-boiler.
Assignee: Individual
•
Filing: 1917-05-12
•
Granted: 1919-03-11
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Expires: 1937-05-12
Abstract
No abstract record available.
Inventors
- 👤 Adolph C J Hennig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:55
CPC Classifications
B; B28; B28C; B28C7/00; B28C7/0007; B28C7/0023; B28C7/003; F; F23; F23C; F23C3/00; F23C3/006
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) | 1922-03-10 | 1922-09-09 | 1923-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-03-10 | 1926-09-09 | 1927-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-03-10 | 1930-09-09 | 1931-03-11 | $7700.00 | Window Closed / Lapsed |