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Patent US2687802A successfully refreshed from Google Patents.
US2687802A
Expired / Lapsed
US
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Machine for grading objects by weight
Assignee: Individual
•
Filing: 1949-06-22
•
Granted: 1954-08-31
•
Expires: 1969-06-22
Abstract
No abstract record available.
Inventors
- 👤 Roy S Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:27
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/16; B07C5/22; Y; Y10; Y10S; Y10S209/00; Y10S209/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1199184A
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US1429092A
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US1607932A
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US1560373A
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US1597536A
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Cited
US2112259A
Cited
US2093338A
Cited
US2381035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |