US1481431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveying method and apparatus
Assignee: Individual
•
Filing: 1920-11-17
•
Granted: 1924-01-22
•
Expires: 1940-11-17
Abstract
No abstract record available.
Inventors
- 👤 Plumb Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:28
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/02; B65G47/04; B65G47/06; B65G47/08; B65G47/082; Y; Y10; Y10S; Y10S414/00; Y10S414/121
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) | 1927-01-21 | 1927-07-23 | 1928-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-01-21 | 1931-07-23 | 1932-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-01-21 | 1935-07-23 | 1936-01-22 | $7700.00 | Window Closed / Lapsed |