US3368423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selectively collapsible stay arm
Assignee: Pneumafil Corp
•
Filing: 1965-11-17
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Granted: 1968-02-13
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Expires: 1985-11-17
Abstract
No abstract record available.
Inventors
- 👤 Fazekas Charles
- 👤 Floyd H Lambert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:01
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/04; E05C17/32; Y; Y10; Y10T; Y10T292/00; Y10T292/28; Y10T292/282; Y10T292/304; Y10T74/00; Y10T74/15; Y10T74/1558; Y10T74/1587; Y10T74/1592; Y10T74/20; Y10T74/20576; Y10T74/20636
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) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |