US3023986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Runway construction
Assignee: Individual
•
Filing: 1957-06-11
•
Granted: 1962-03-06
•
Expires: 1977-06-11
Abstract
No abstract record available.
Inventors
- 👤 Friedrich K H Nallinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:27
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/24; E01C11/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1793719A
Cited
US1917141A
Cited
US1949295A
Cited
FR818983A
Cited
US2505622A
Cited
US2497998A
Cited
US2634659A
Cited
US2876326A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |