US3433444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Counterpoised supporting device
Assignee: Individual
•
Filing: 1967-01-04
•
Granted: 1969-03-18
•
Expires: 1987-01-04
Abstract
No abstract record available.
Inventors
- 👤 Thomas F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:03
CPC Classifications
F; F16; F16M; F16M11/00; F16M11/02; F16M11/04; F16M11/06; F16M11/10; A; A47; A47J; A47J45/00; A47J45/02; A61; A61G; A61G15/00; A61G15/14; F16M11/20; F16M11/2007; F16M11/2035; F16M11/2064; F16M13/00; F16M13/02; F16M13/027; F16M2200/00; F16M2200/02; F16M2200/06; F16M2200/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |