US3408083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable seal
Assignee: Airco Inc
•
Filing: 1966-09-02
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Granted: 1968-10-29
•
Expires: 1986-09-02
Abstract
No abstract record available.
Inventors
- 👤 Thaddeus A Szymanski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:48
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/46; Y; Y10; Y10S; Y10S277/00; Y10S277/903; Y10S277/935; Y10S277/944; Y10S277/945; Y10S277/946
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) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |