US2833844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measurement of temperatures
Assignee: Land Pyrometers Ltd
•
Filing: 1955-07-13
•
Granted: 1958-05-06
•
Expires: 1975-07-13
Abstract
No abstract record available.
Inventors
- 👤 Burton Eric John
- 👤 Mayorcas Reginald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:25
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/08; G01K1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191712A
Cited
US1615451A
Cited
US1849832A
Cited
US2291448A
Cited
US2534448A
Cited
US2669593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |