US3026719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propulsion of bodies at high linear speeds
Assignee: Individual
•
Filing: 1959-02-25
•
Granted: 1962-03-27
•
Expires: 1979-02-25
Abstract
No abstract record available.
Inventors
- 👤 John F Kopczynski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:06
CPC Classifications
G; G01; G01M; G01M9/00; G01M9/02; G01M9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE36858C
Cited
US529766A
Cited
US936645A
Cited
US2016779A
Cited
US1908900A
Cited
US2261257A
Cited
US2357199A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |