US2755152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination level and sloping table
Assignee: Individual
•
Filing: 1955-01-18
•
Granted: 1956-07-17
•
Expires: 1975-01-18
Abstract
No abstract record available.
Inventors
- 👤 Frances F Calgy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:27
CPC Classifications
A; A61; A61G; A61G13/00; A61G13/10; A61G13/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1595574A
Cited
US1599247A
Cited
US1990600A
Cited
US2658754A
Cited
US2579783A
Cited
US2699977A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |