US2705330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toilet seat lifter
Assignee: Individual
•
Filing: 1949-07-20
•
Granted: 1955-04-05
•
Expires: 1969-07-20
Abstract
No abstract record available.
Inventors
- 👤 Richard R Knudsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:06
CPC Classifications
A; A47; A47K; A47K13/00; A47K13/10; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE293595C
Cited
US1089615A
Cited
US1134755A
Cited
US1509242A
Cited
US2042276A
Cited
US2251770A
Cited
US2329240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-04 | 1958-10-04 | 1959-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-04 | 1962-10-04 | 1963-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-04 | 1966-10-04 | 1967-04-05 | $7700.00 | Window Closed / Lapsed |