US3363518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulically damped air cylinder
Assignee: Individual
•
Filing: 1965-12-15
•
Granted: 1968-01-16
•
Expires: 1985-12-15
Abstract
No abstract record available.
Inventors
- 👤 Mathew G Boissevain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:28
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/06; F15B11/072; F15B11/076; F15B2211/00; F15B2211/40; F15B2211/415; F15B2211/41527; F15B2211/41536; F15B2211/42; F15B2211/421; F15B2211/424; F15B2211/70; F15B2211/75
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1724229A
Cited
US2081921A
Cited
US2358988A
Cited
US2624318A
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DE939064C
Cited
US3081743A
Cited
US3182959A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |