Patent US2571718A successfully refreshed from Google Patents.
US2571718A
Expired / Lapsed
US
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Load-responsive device
Assignee: Individual
•
Filing: 1945-11-20
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Granted: 1951-10-16
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Expires: 1965-11-20
Abstract
No abstract record available.
Inventors
- 👤 Edgar T Howes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:38
CPC Classifications
G; G01; G01G; G01G3/00; G01G3/12; G01G3/15; G01B; G01B7/00; G01B7/16; G01B7/24; G01G19/00; G01G19/14; G01G19/18; Y; Y10; Y10S; Y10S73/00; Y10S73/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1906551A
Cited
US2053560A
Cited
GB442441A
Cited
DE658570C
Cited
US2269584A
Cited
US2327935A
Cited
US2312888A
Cited
US2360886A
Cited
US2461635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-15 | 1955-04-16 | 1955-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-15 | 1959-04-16 | 1959-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-15 | 1963-04-16 | 1963-10-16 | $7700.00 | Window Closed / Lapsed |