Patent US2619002A successfully refreshed from Google Patents.
US2619002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical scale reading system
Assignee: Keuffel and Esser Co
•
Filing: 1949-06-23
•
Granted: 1952-11-25
•
Expires: 1969-06-23
Abstract
No abstract record available.
Inventors
- 👤 Allister L Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:01
CPC Classifications
G; G01; G01C; G01C1/00; G01C1/02; G01C1/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE351163C
Cited
US1217169A
Cited
US1609571A
Cited
US1601538A
Cited
FR759485A
Cited
US2084942A
Cited
CH232925A
Cited
GB557012A
Cited
US2406828A
Cited
US2480237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |