US2575318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mercury switch
Assignee: MINNCAPOLIS HONEYWEEL REGULATO
•
Filing: 1948-01-08
•
Granted: 1951-11-13
•
Expires: 1968-01-08
Abstract
No abstract record available.
Inventors
- 👤 Raymond P Mattern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:34
CPC Classifications
H; H01; H01H; H01H29/00; H01H29/20; H01H29/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE520357C
Cited
US2047931A
Cited
GB466257A
Cited
US2101093A
Cited
US2142154A
Cited
US2142107A
Cited
US2275853A
Cited
US2365444A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-12 | 1955-05-14 | 1955-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-12 | 1959-05-14 | 1959-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-12 | 1963-05-14 | 1963-11-13 | $7700.00 | Window Closed / Lapsed |