US2724840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilated toilet bowl
Assignee: Individual
•
Filing: 1952-05-06
•
Granted: 1955-11-29
•
Expires: 1972-05-06
Abstract
No abstract record available.
Inventors
- 👤 William V Scott
- 👤 Thurman F Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:10
CPC Classifications
E; E03; E03D; E03D9/00; E03D9/04; E03D9/05; E03D11/00; E03D11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US470740A
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US704471A
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US688234A
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GB190303019A
Cited
US936561A
Cited
US1177384A
Cited
US1213113A
Cited
US1211137A
Cited
US1861501A
Cited
US1885715A
Cited
US2058436A
Cited
US2396371A
Cited
US2452282A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-28 | 1959-05-30 | 1959-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-28 | 1963-05-30 | 1963-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-28 | 1967-05-30 | 1967-11-29 | $7700.00 | Window Closed / Lapsed |