Patent US2843935A successfully refreshed from Google Patents.
US2843935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instrument for measuring, interpolating, plotting and the like
Assignee: GERBER SEIENTIFIC INSTR COMPAN
•
Filing: 1953-11-23
•
Granted: 1958-07-22
•
Expires: 1973-11-23
Abstract
No abstract record available.
Inventors
- 👤 Gerber Heinz Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:32
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2572531A
Cited
GB189412395A
Cited
US683379A
Cited
US811625A
Cited
US1760169A
Cited
US1779131A
Cited
US2331298A
Cited
CH225181A
Cited
US2422649A
Cited
US2387404A
Cited
US2422745A
Cited
US2455972A
Cited
FR910929A
Cited
FR912337A
Cited
US2561020A
Cited
US2517491A
Cited
US2530955A
Cited
US2634504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |