Patent US1755416A successfully refreshed from Google Patents.
US2429040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring motor regulator
Assignee: Individual
•
Filing: 1944-03-21
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Granted: 1947-10-14
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Expires: 1964-03-21
Abstract
No abstract record available.
Inventors
- 👤 Zaverl Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:05
CPC Classifications
A; A63; A63H; A63H29/00; A63H29/02; A63H29/06; F; F03; F03G; F03G1/00; F03G1/02; F03G1/024; F03G1/026; F03G5/00; F03G5/06; F03G5/062; F03G5/065; F03G5/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-13 | 1951-04-14 | 1951-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-13 | 1955-04-14 | 1955-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-13 | 1959-04-14 | 1959-10-14 | $7700.00 | Window Closed / Lapsed |