Patent US2727809A successfully refreshed from Google Patents.
US2727809A
Expired / Lapsed
US
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Method of and apparatus for converting bulk fertilizer into pellets
Assignee: Individual
•
Filing: 1953-04-03
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Granted: 1955-12-20
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Expires: 1973-04-03
Abstract
No abstract record available.
Inventors
- 👤 Harold W Lust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:32
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1921114A
Cited
US2052329A
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US2164986A
Cited
US2167432A
Cited
US2268816A
Cited
US2287759A
Cited
US2448126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |