US2634173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scaffold
Assignee: Individual
•
Filing: 1951-03-22
•
Granted: 1953-04-07
•
Expires: 1971-03-22
Abstract
No abstract record available.
Inventors
- 👤 Clifton D Mayhew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:55
CPC Classifications
E; E04; E04G; E04G3/00; E04G3/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US111540A
Cited
US200767A
Cited
US842331A
Cited
US866078A
Cited
GB191254A
Cited
FR598351A
Cited
US1689626A
Cited
US1830369A
Cited
DE630926C
Cited
US2072354A
Cited
US2326983A
Cited
US2433859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |