US1359452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scaffold
Assignee: Individual
•
Filing: 1920-02-19
•
Granted: 1920-11-16
•
Expires: 1940-02-19
Abstract
No abstract record available.
Inventors
- 👤 Howard I Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:57
CPC Classifications
E; E04; E04G; E04G5/00; E04G5/06; E04G5/061; E04G1/00; E04G1/15; E04G2001/157; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32091; Y10T403/32254; Y10T403/32426; Y10T403/32549; Y10T403/36; Y10T403/362; Y10T403/38; Y10T403/70; Y10T403/7045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1923-11-16 | 1924-05-17 | 1924-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-11-16 | 1928-05-17 | 1928-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-11-16 | 1932-05-17 | 1932-11-16 | $7700.00 | Window Closed / Lapsed |