US3426673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for processing waste material
Assignee: Sfm Corp
•
Filing: 1967-03-30
•
Granted: 1969-02-11
•
Expires: 1987-03-30
Abstract
No abstract record available.
Inventors
- 👤 William W Miner
- 👤 Lynn F Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:00
CPC Classifications
B; B02; B02C; B02C18/00; B02C18/0084; B30; B30B; B30B9/00; B30B9/30; B30B9/3003; B30B9/301; B30B9/3035; Y; Y10; Y10S; Y10S100/00; Y10S100/903; Y10S100/906
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US537909A
Cited
US657607A
Cited
US692605A
Cited
US2087435A
Cited
US2151855A
Cited
US2810181A
Cited
US3131040A
Cited
US3192853A
Cited
US3214105A
Cited
US3277850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |