US1215424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary disintegrating, pulverizing, or mixing apparatus.
Assignee: Individual
•
Filing: 1915-12-23
•
Granted: 1917-02-13
•
Expires: 1935-12-23
Abstract
No abstract record available.
Inventors
- 👤 Jacob William Spensley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:54
CPC Classifications
B; B02; B02C; B02C7/00; B02C7/02; B02C7/04; D; D21; D21B; D21B1/00; D21B1/04; D21B1/12; D21B1/30
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) | 1920-02-13 | 1920-08-14 | 1921-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-02-13 | 1924-08-14 | 1925-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-02-13 | 1928-08-14 | 1929-02-13 | $7700.00 | Window Closed / Lapsed |