US2129697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold and method of making the same
Assignee: WILLIAM M SHEFFIELD
•
Filing: 1935-10-18
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Granted: 1938-09-13
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Expires: 1955-10-18
Abstract
No abstract record available.
Inventors
- 👤 Louisot Felix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:14
CPC Classifications
D; D21; D21J; D21J3/00; Y; Y10; Y10S; Y10S425/00; Y10S425/03; Y10S76/00; Y10S76/06; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071; Y10T29/49075; Y10T29/49078; Y10T29/49544; Y10T29/4956; Y10T29/49563; Y10T29/4981
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) | 1941-09-12 | 1942-03-14 | 1942-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-09-12 | 1946-03-14 | 1946-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-09-12 | 1950-03-14 | 1950-09-13 | $7700.00 | Window Closed / Lapsed |