US3396515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air dryer
Assignee: NEAL A WRIGHT
•
Filing: 1967-03-23
•
Granted: 1968-08-13
•
Expires: 1987-03-23
Abstract
No abstract record available.
Inventors
- 👤 Neal A Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:17
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/26; Y; Y10; Y10S; Y10S165/00; Y10S165/913
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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AT173433B
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US2703519A
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US3075337A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |