US2760707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scaffold stair unit
Assignee: Safway Steel Products Inc
•
Filing: 1951-07-09
•
Granted: 1956-08-28
•
Expires: 1971-07-09
Abstract
No abstract record available.
Inventors
- 👤 Arvid A Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:26
CPC Classifications
E; E04; E04G; E04G5/00; E04G5/10; E04G7/00; E04G7/30; E04G7/302; E04G7/303; E04G7/305; E06; E06C; E06C1/00; E06C1/02; E06C1/34; E06C1/36; F; F16; F16B; F16B45/00; F16B45/04; F16B45/049; Y; Y10; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45969
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |