US3323291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emergency air dryer for cable pressurizing system
Assignee: Puregas Equipment Corp
•
Filing: 1965-07-27
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Granted: 1967-06-06
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Expires: 1985-07-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Kern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:46
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/20; H02G15/26
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) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |