US3474976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-forming-boom retracting and deploying apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1968-01-26
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Granted: 1969-10-28
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Expires: 1988-01-26
Abstract
No abstract record available.
Inventors
- 👤 Frank C Rushing
- 👤 Bernard J Murphy Jr
- 👤 Ralph I Hauser
- 👤 Basil S Shephard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:43
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/1235; F; F16; F16H; F16H19/00; F16H19/02; F16H19/06; F16H19/064
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2157278A
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US3144215A
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US3144104A
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US3243132A
Cited
US3371453A
Cited
US3371801A
Cited
US3361377A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |