US2567421A
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Assignee: BRUNO MARTINUZZI
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Filing: 1947-01-30
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Granted: 1951-09-11
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Expires: 1967-01-30
Abstract
No abstract record available.
Inventors
- 👤 Brantingson Sigurd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:31
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02; H01H13/12; H01H1/00; H01H1/12; H01H1/14; H01H1/24; H01H1/242
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |