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US2830703A
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US
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Drill sorting and sizing machine
Assignee: Individual
•
Filing: 1955-01-12
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Granted: 1958-04-15
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Expires: 1975-01-12
Abstract
No abstract record available.
Inventors
- 👤 Theodore J Laase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:15
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/04; B07C5/06; B07C5/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US446867A
Cited
DE440407C
Cited
US1104727A
Cited
US1148066A
Cited
US1621695A
Cited
US1899737A
Cited
GB561515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |