US2824700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of reducing materials
Assignee: Individual
•
Filing: 1954-05-25
•
Granted: 1958-02-25
•
Expires: 1974-05-25
Abstract
No abstract record available.
Inventors
- 👤 Weston David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:48
CPC Classifications
B; B02; B02C; B02C25/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2001543A
Cited
US2136907A
Cited
US2398774A
Cited
US2381351A
Cited
US2555171A
Cited
US2566103A
Cited
US2680568A
Cited
US2766939A
Cited
US2766940A
Cited
US2766941A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |