Patent US3526223A successfully refreshed from Google Patents.
US3526223A
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US
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Space suit and membrane pump system therefor
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1965-09-20
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Granted: 1970-09-01
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Expires: 1985-09-20
Abstract
No abstract record available.
Inventors
- 👤 Daniel Lee Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:08
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/0009; F04B43/0054; F04B43/0072; B; B64; B64D; B64D10/00; B64G; B64G6/00; F04B43/08; F04B43/10; F04B43/113; F04B43/1133; F04B43/1136
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-31 | 1974-03-02 | 1974-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-31 | 1978-03-02 | 1978-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-31 | 1982-03-02 | 1982-09-01 | $7700.00 | Window Closed / Lapsed |