US2600199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible scaffold
Assignee: Individual
•
Filing: 1948-03-06
•
Granted: 1952-06-10
•
Expires: 1968-03-06
Abstract
No abstract record available.
Inventors
- 👤 William H Brewster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:57
CPC Classifications
E; E04; E04G; E04G3/00; E04G3/28; E04G3/30; E04G1/00; E04G1/15; E04G2001/157
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US344734A
Cited
US1312994A
Cited
US760239A
Cited
GB191109147A
Cited
US1487497A
Cited
US1558725A
Cited
US1681936A
Cited
US2007294A
Cited
US2445286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |