US3332089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water closet ventilating means
Assignee: Individual
•
Filing: 1964-06-08
•
Granted: 1967-07-25
•
Expires: 1984-06-08
Abstract
No abstract record available.
Inventors
- 👤 Wilton Herb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:27
CPC Classifications
E; E03; E03D; E03D9/00; E03D9/04; E03D9/05; E03D9/052
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2072493A
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US2126131A
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US2151138A
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US2171903A
Cited
US2988756A
Cited
US3122757A
Cited
US3069696A
Cited
US3120665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |