US3465990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft having energy-conserving means
Assignee: RAYMOND PRUNTY HOLLAND JR
•
Filing: 1966-10-05
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Granted: 1969-09-09
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Expires: 1986-10-05
Abstract
No abstract record available.
Inventors
- 👤 Raymond Prunty Holland Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:46
CPC Classifications
B; B64; B64C; B64C23/00; B64C2230/00; B64C2230/04; B64C2230/06; B64C2230/14; Y; Y02; Y02T; Y02T50/00; Y02T50/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB966522A
Cited
US3093349A
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GB1018609A
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US3265331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |