US2853876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact pressure indicator
Assignee: TDK Micronas GmbH
•
Filing: 1955-09-28
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Granted: 1958-09-30
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Expires: 1975-09-28
Abstract
No abstract record available.
Inventors
- 👤 Charles P Majkrzak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:02
CPC Classifications
H; H01; H01H; H01H1/00; G; G01; G01L; G01L5/00; G01L5/0057; H04; H04Q; H04Q1/00; H04Q1/18; H04Q1/20; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1074
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2003910A
Cited
US2038262A
Cited
US2122760A
Cited
US2250941A
Cited
US2468867A
Cited
US2589401A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |