US3012756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tandem sheave stringing block
Assignee: Individual
•
Filing: 1959-07-31
•
Granted: 1961-12-12
•
Expires: 1979-07-31
Abstract
No abstract record available.
Inventors
- 👤 Cronkright Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:46
CPC Classifications
H; H02; H02G; H02G1/00; H02G1/02; H02G1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1672823A
Cited
US1841292A
Cited
US2633329A
Cited
US2786092A
Cited
US2765145A
Cited
US2833423A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |