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US2642234A
Expired / Lapsed
US
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Synchronizer
Assignee: Individual
•
Filing: 1949-03-04
•
Granted: 1953-06-16
•
Expires: 1969-03-04
Abstract
No abstract record available.
Inventors
- 👤 John T Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:04
CPC Classifications
G; G03; G03B; G03B31/00; G03B31/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US293957A
Cited
US791267A
Cited
GB191003512A
Cited
US1653843A
Cited
US1856886A
Cited
GB344819A
Cited
US2002111A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |