Patent US3429530A successfully refreshed from Google Patents.
US3429530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window construction for fuselages of aircraft
Assignee: Individual
•
Filing: 1966-11-08
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Granted: 1969-02-25
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Expires: 1986-11-08
Abstract
No abstract record available.
Inventors
- 👤 Heinrich Hertel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:11
CPC Classifications
B; B64; B64C; B64C1/00; B64C1/14; B64C1/1476; B64C1/1484
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US639320A
Cited
US973027A
Cited
US1677577A
Cited
US2599138A
Cited
US2613402A
Cited
US2659686A
Cited
US3101819A
Cited
US3064380A
Cited
US3307316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |