Patent US2920485A successfully refreshed from Google Patents.
US2920485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrometer
Assignee: Servo Corp of America
•
Filing: 1955-01-11
•
Granted: 1960-01-12
•
Expires: 1975-01-11
Abstract
No abstract record available.
Inventors
- 👤 Derganc William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:43
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/02; G01J5/08; G01J5/0803; G01J5/0805; Y; Y10; Y10S; Y10S246/00; Y10S246/01
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1726318A
Cited
US1810172A
Cited
US1816047A
Cited
US2096323A
Cited
US2356238A
Cited
US2547212A
Cited
GB662818A
Cited
US2673297A
Cited
US2517554A
Cited
US2638811A
Cited
FR1024076A
Cited
GB719485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |