Patent US2774388A successfully refreshed from Google Patents.
US2774388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shuttle control
Assignee: Individual
•
Filing: 1953-09-03
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Granted: 1956-12-18
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Expires: 1973-09-03
Abstract
No abstract record available.
Inventors
- 👤 Herman C Frentzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:01
CPC Classifications
D; D03; D03D; D03D41/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US758895A
Cited
US841863A
Cited
US1513044A
Cited
US1826484A
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US2030270A
Cited
US2501394A
Cited
US2537895A
Cited
US2649118A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |