Patent US3049896A successfully refreshed from Google Patents.
US3049896A
Expired / Lapsed
US
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Personnel isolation and protection systems
Assignee: Environment Inc
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Filing: 1960-04-27
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Granted: 1962-08-21
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Expires: 1980-04-27
Abstract
No abstract record available.
Inventors
- 👤 Webb Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:44
CPC Classifications
A; A62; A62B; A62B17/00; A62B17/005; A41; A41D; A41D13/00; A41D13/002; A41D13/0025; A62B17/001; A62B17/006; B; B64; B64D; B64D10/00; B64D2010/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2332662A
Cited
US2429234A
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US2483116A
Cited
US2573414A
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US2596178A
Cited
US2881758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |