US3129888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air odor control device
Assignee: INTERSTATE SANITATION Corp
•
Filing: 1959-05-19
•
Granted: 1964-04-21
•
Expires: 1979-05-19
Abstract
No abstract record available.
Inventors
- 👤 O'hagan Elwin Clarence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:25
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1898621A
Cited
US1960149A
Cited
US1968136A
Cited
US2111025A
Cited
US2349672A
Cited
US2711346A
Cited
US2766067A
Cited
US2757957A
Cited
US2809863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |