US1646645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall-board machine
Assignee: Individual
•
Filing: 1924-06-30
•
Granted: 1927-10-25
•
Expires: 1944-06-30
Abstract
No abstract record available.
Inventors
- 👤 Axel L Frederickson
- 👤 Elmer C Pitcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:31
CPC Classifications
B; B27; B27D; B27D1/00; B27D1/04; B27D1/06; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1722; Y10T156/1734; Y10T29/00; Y10T29/53; Y10T29/53313; Y10T29/53365; Y10T29/53478
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) | 1930-10-24 | 1931-04-25 | 1931-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-10-24 | 1935-04-25 | 1935-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-10-24 | 1939-04-25 | 1939-10-25 | $7700.00 | Window Closed / Lapsed |