Patent US1770880A successfully refreshed from Google Patents.
US1770880A
Expired / Lapsed
US
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Counterbalance
Assignee: Individual
•
Filing: 1929-08-03
•
Granted: 1930-07-15
•
Expires: 1949-08-03
Abstract
No abstract record available.
Inventors
- 👤 Fraser Lovias Fairy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:56
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/28; F16F15/283; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2154; Y10T74/2156; Y10T74/2157; Y10T74/2173; Y10T74/2179
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) | 1933-07-14 | 1934-01-13 | 1934-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-07-14 | 1938-01-13 | 1938-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-07-14 | 1942-01-13 | 1942-07-15 | $7700.00 | Window Closed / Lapsed |