US1516029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for use in manufacturing mortar or plaster
Assignee: Sturtevant Mill Co
•
Filing: 1923-03-05
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Granted: 1924-11-18
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Expires: 1943-03-05
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Sturtevant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:20
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/08; B28C5/0806; Y; Y10; Y10T; Y10T137/00; Y10T137/4673; Y10T137/4857; Y10T137/8158; Y10T137/8225; Y10T137/8259; Y10T137/8593; Y10T137/86493; Y10T137/86863; Y10T137/86871
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) | 1927-11-18 | 1928-05-19 | 1928-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-11-18 | 1932-05-19 | 1932-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-11-18 | 1936-05-19 | 1936-11-18 | $7700.00 | Window Closed / Lapsed |