US1503880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ladder rung
Assignee: Individual
•
Filing: 1921-07-21
•
Granted: 1924-08-05
•
Expires: 1941-07-21
Abstract
No abstract record available.
Inventors
- 👤 Broman Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:01
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/08; E06C7/082; E06C7/083; F; F16; F16B; F16B2200/00; F16B2200/20; Y; Y10; Y10T; Y10T403/00; Y10T403/49; Y10T403/4974
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) | 1927-08-05 | 1928-02-04 | 1928-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-08-05 | 1932-02-04 | 1932-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-08-05 | 1936-02-04 | 1936-08-05 | $7700.00 | Window Closed / Lapsed |