US3055453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible trestle
Assignee: Individual
•
Filing: 1961-05-10
•
Granted: 1962-09-25
•
Expires: 1981-05-10
Abstract
No abstract record available.
Inventors
- 👤 Andrew B Vanyo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:07
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/34; A; A47; A47B; A47B13/00; A47B13/02; A47B13/021; B; B25; B25H; B25H1/00; B25H1/06
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) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |