US2754580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method, blank, and apparatus for making bimetallic coils
Assignee: MANHATTAN Co
•
Filing: 1951-10-18
•
Granted: 1956-07-17
•
Expires: 1971-10-18
Abstract
No abstract record available.
Inventors
- 👤 Schlaich Lottie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:32
CPC Classifications
G; G01; G01K; G01K5/00; G01K5/48; G01K5/56; G01K5/62; G01K5/64; G01K5/68; Y; Y10; Y10S; Y10S72/00; Y10S72/70
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |