Patent US5345552A successfully refreshed from Google Patents.
Patent US594879A successfully refreshed from Google Patents.
Patent US729233A successfully refreshed from Google Patents.
Patent US2104102A successfully refreshed from Google Patents.
Patent US2496967A successfully refreshed from Google Patents.
US2496967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic recording microphotometer
Assignee: Individual
•
Filing: 1948-02-25
•
Granted: 1950-02-07
•
Expires: 1968-02-25
Abstract
No abstract record available.
Inventors
- 👤 Vassy Etienne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:44
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/28; G01J3/40
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |