US2979358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lifting devices
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1957-04-17
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Granted: 1961-04-11
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Expires: 1977-04-17
Abstract
No abstract record available.
Inventors
- 👤 Jerkins Ernest Edward
- 👤 Dawson Dennis James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:49
CPC Classifications
G; G21; G21C; G21C19/00; G21C19/02; G21C19/10; G21C19/105; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S294/00; Y10S294/906; Y10T; Y10T279/00; Y10T279/12; Y10T279/1241
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) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |