US2889799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature indicator
Assignee: Individual
•
Filing: 1955-01-20
•
Granted: 1959-06-09
•
Expires: 1975-01-20
Abstract
No abstract record available.
Inventors
- 👤 Korpman Ralf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:36
CPC Classifications
A; A61; A61B; A61B50/00; Y; Y10; Y10S; Y10S116/00; Y10S116/14; Y10S252/00; Y10S252/962; Y10S439/00; Y10S439/913
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1426569A
Cited
US1843234A
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US1894015A
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US2118144A
Cited
US2177627A
Cited
US2049867A
Cited
US2490933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-08 | 1962-12-08 | 1963-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-08 | 1966-12-08 | 1967-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-08 | 1970-12-08 | 1971-06-09 | $7700.00 | Window Closed / Lapsed |