Patent US2898434A successfully refreshed from Google Patents.
US2898434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable reference device
Assignee: General Electric Co
•
Filing: 1956-12-26
•
Granted: 1959-08-04
•
Expires: 1976-12-26
Abstract
No abstract record available.
Inventors
- 👤 Harold H P Lemmerman
- 👤 Weyman S Crocker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:59
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0208; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1919; G05D23/1921; G05D23/20; G05D23/22; Y; Y10; Y10S; Y10S236/00; Y10S236/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1261086A
Cited
US1184430A
Cited
US1515199A
Cited
US1893847A
Cited
US2149729A
Cited
US2524886A
Cited
US2528377A
Cited
US2595814A
Cited
US2640089A
Cited
US2658380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |