US1297326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric and thermostatic indicator and alarm.
Assignee: Individual
•
Filing: 1917-03-29
•
Granted: 1919-03-18
•
Expires: 1937-03-29
Abstract
No abstract record available.
Inventors
- 👤 Lars J Dahl
- 👤 Albert E Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:46
CPC Classifications
G; G01; G01P; G01P1/00; G01P1/07; G01P1/08; G01P1/10; G01P1/11; H; H01; H01H; H01H35/00; H01H35/24
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) | 1922-03-17 | 1922-09-16 | 1923-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-03-17 | 1926-09-16 | 1927-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-03-17 | 1930-09-16 | 1931-03-18 | $7700.00 | Window Closed / Lapsed |