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US3057321A
Expired / Lapsed
US
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Improved pneumatic alarm and protection apparatus for safes and the like
Assignee: Italiana Westinghouse Freni e Segnali SpA
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Filing: 1960-09-13
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Granted: 1962-10-09
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Expires: 1980-09-13
Abstract
No abstract record available.
Inventors
- 👤 Pretini Gisberto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:23
CPC Classifications
E; E05; E05G; E05G1/00; E05G1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US523946A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |