US2535591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polarizing lens synchronizer for cameras
Assignee: Individual
•
Filing: 1947-06-13
•
Granted: 1950-12-26
•
Expires: 1967-06-13
Abstract
No abstract record available.
Inventors
- 👤 Charles E Mosman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:42
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/02; G03B17/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2169688A
Cited
US2190718A
Cited
US2153132A
Cited
US2132683A
Cited
US2184015A
Cited
US2152513A
Cited
US2210882A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |