US2889742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide changer-recorder synchronizer
Assignee: Individual
•
Filing: 1957-09-26
•
Granted: 1959-06-09
•
Expires: 1977-09-26
Abstract
No abstract record available.
Inventors
- 👤 Anthony G Marturano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:30
CPC Classifications
G; G03; G03B; G03B23/00; G03B23/02; G03B23/04; G03B23/046; G03B31/00; G03B31/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2138479A
Cited
US2631855A
Cited
US2528855A
Cited
US2613574A
Cited
US2693127A
Cited
US2699089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-08 | 1962-12-08 | 1963-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-08 | 1966-12-08 | 1967-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-08 | 1970-12-08 | 1971-06-09 | $7700.00 | Window Closed / Lapsed |