Patent US2545767A successfully refreshed from Google Patents.
US2545767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trestle leg and hinge bracket
Assignee: DALTON Manufacturing Co
•
Filing: 1947-11-19
•
Granted: 1951-03-20
•
Expires: 1967-11-19
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Dalton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:32
CPC Classifications
A; A47; A47B; A47B13/00; A47B13/02; A47B13/021; A47B2200/00; A47B2200/0011; A47B2200/0016; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/3439
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US552404A
Cited
US1555577A
Cited
US2331595A
Cited
US2317444A
Cited
US2330766A
Cited
US2412716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |