US2717544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reproduction camera
Assignee: HUNTER PENROSE Ltd
•
Filing: 1951-04-25
•
Granted: 1955-09-13
•
Expires: 1971-04-25
Abstract
No abstract record available.
Inventors
- 👤 Messenger George Edward
- 👤 Batchelor Dennis Arthu William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:46
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/323
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1051591A
Cited
FR531524A
Cited
US2000090A
Cited
US2230251A
Cited
US2105475A
Cited
US2135507A
Cited
US2307479A
Cited
US2393407A
Cited
US2482571A
Cited
US2572729A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |