US1274545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical generating system.
Assignee: Individual
•
Filing: 1914-09-28
•
Granted: 1918-08-06
•
Expires: 1934-09-28
Abstract
No abstract record available.
Inventors
- 👤 Frederick Albert Herwehe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:57
CPC Classifications
F; F03; F03D; F03D9/00; F03D9/20; F03D9/25; F03D9/10; F03D9/11; F03D15/00; F03D15/10; F03D80/00; F03D80/70; F05; F05B; F05B2270/00; F05B2270/30; F05B2270/327; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72; Y02E70/00; Y02E70/30
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) | 1921-08-05 | 1922-02-04 | 1922-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-08-05 | 1926-02-04 | 1926-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-08-05 | 1930-02-04 | 1930-08-06 | $7700.00 | Window Closed / Lapsed |