US3427683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming spherical pellets
Assignee: United States Department of the Interior
•
Filing: 1967-01-18
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Granted: 1969-02-18
•
Expires: 1987-01-18
Abstract
No abstract record available.
Inventors
- 👤 Stanley Nazaruk
- 👤 Carl Rosa
- 👤 Alvin F Headrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:02
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/20; B30B11/201; B01; B01J; B01J2/00; B01J2/22; Y; Y10; Y10S; Y10S425/00; Y10S425/101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1106138A
Cited
US2641044A
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US3039165A
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US2813299A
Cited
US3213170A
Cited
US3355765A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |