Patent US3689497A successfully refreshed from Google Patents.
Patent US1724084A successfully refreshed from Google Patents.
Patent US2656223A successfully refreshed from Google Patents.
US2656223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable scaffold clamp
Assignee: Individual
•
Filing: 1948-12-14
•
Granted: 1953-10-20
•
Expires: 1968-12-14
Abstract
No abstract record available.
Inventors
- 👤 Gray Percy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:33
CPC Classifications
E; E04; E04G; E04G7/00; E04G7/02; E04G1/00; E04G1/15; E04G1/151; F; F16; F16B; F16B45/00; E04G2001/157
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE208353C
Cited
US350153A
Cited
US362747A
Cited
US567755A
Cited
US711384A
Cited
US1129218A
Cited
US1179166A
Cited
US1359452A
Cited
US1376924A
Cited
US1672502A
Cited
US1825590A
Cited
US2136420A
Cited
US2430642A
Cited
US2439185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |