Patent US2416950A successfully refreshed from Google Patents.
US2416950A
Expired / Lapsed
US
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Portable scaffolding
Assignee: Individual
•
Filing: 1946-01-28
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Granted: 1947-03-04
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Expires: 1966-01-28
Abstract
No abstract record available.
Inventors
- 👤 Walter A Pohrman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:34
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/28; E04G1/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-03 | 1950-09-02 | 1951-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-03 | 1954-09-02 | 1955-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-03 | 1958-09-02 | 1959-03-04 | $7700.00 | Window Closed / Lapsed |