Patent US3516404A successfully refreshed from Google Patents.
US3516404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Biological isolation garment
Assignee: National Aeronautics and Space Administration
•
Filing: 1969-09-09
•
Granted: 1970-06-23
•
Expires: 1989-09-09
Abstract
No abstract record available.
Inventors
- 👤 Fred R Spross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:03
CPC Classifications
B; B64; B64G; B64G6/00; A; A62; A62B; A62B17/00; A62B17/001
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1931562A
Cited
US2066706A
Cited
US2886027A
Cited
US2779331A
Cited
US3049896A
Cited
US3284805A
Cited
US3185149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |