Patent US2724112A successfully refreshed from Google Patents.
US2724112A
Expired / Lapsed
US
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Energy absorber
Assignee: Collins Radio Co
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Filing: 1950-03-03
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Granted: 1955-11-15
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Expires: 1970-03-03
Abstract
No abstract record available.
Inventors
- 👤 Curtis M Hepperle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:47
CPC Classifications
H; H01; H01Q; H01Q17/00; H01Q17/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2527918A
Cited
FR802728A
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US2461005A
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US2464269A
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US2464006A
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US2474384A
Cited
US2508479A
Cited
US2491662A
Cited
US2588249A
Cited
US2526573A
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US2538035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-14 | 1959-05-16 | 1959-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-14 | 1963-05-16 | 1963-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-14 | 1967-05-16 | 1967-11-15 | $7700.00 | Window Closed / Lapsed |