US2541469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens mount for cameras
Assignee: Paillard SA
•
Filing: 1949-12-13
•
Granted: 1951-02-13
•
Expires: 1969-12-13
Abstract
No abstract record available.
Inventors
- 👤 Guinchard Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:47
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/02; G02B7/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1848402A
Cited
US2000811A
Cited
US2279476A
Cited
US2328157A
Cited
US2322034A
Cited
US2465578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |