US2565074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic copying apparatus
Assignee: HOLBROOK MICROFILMING SERVICE
•
Filing: 1947-02-26
•
Granted: 1951-08-21
•
Expires: 1967-02-26
Abstract
No abstract record available.
Inventors
- 👤 Halahan John
- 👤 Floyd A Lyon
- 👤 Lynn H Mortimer
- 👤 Theodore F Aronson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:51
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/46
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-20 | 1955-02-19 | 1955-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-20 | 1959-02-19 | 1959-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-20 | 1963-02-19 | 1963-08-21 | $7700.00 | Window Closed / Lapsed |