US2739847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scaffold
Assignee: Individual
•
Filing: 1952-10-11
•
Granted: 1956-03-27
•
Expires: 1972-10-11
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:19
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA465647A
Cited
US841931A
Cited
US835059A
Cited
US966801A
Cited
GB172474A
Cited
GB327045A
Cited
US1871041A
Cited
US2383449A
Cited
US2435461A
Cited
US2632676A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-27 | 1959-09-26 | 1960-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-27 | 1963-09-26 | 1964-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-27 | 1967-09-26 | 1968-03-27 | $7700.00 | Window Closed / Lapsed |