US2711630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rockets
Assignee: Individual
•
Filing: 1951-12-28
•
Granted: 1955-06-28
•
Expires: 1971-12-28
Abstract
No abstract record available.
Inventors
- 👤 Lehman Sylvester Clyde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:52
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/72; F02K9/42; F02K9/60; F02K9/605; F02K9/95
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-27 | 1958-12-27 | 1959-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-27 | 1962-12-27 | 1963-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-27 | 1966-12-27 | 1967-06-28 | $7700.00 | Window Closed / Lapsed |