Patent US2972433A successfully refreshed from Google Patents.
US2972433A
Expired / Lapsed
US
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Apparatus for feeding loose-leaf metal arches
Assignee: Individual
•
Filing: 1958-11-05
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Granted: 1961-02-21
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Expires: 1978-11-05
Abstract
No abstract record available.
Inventors
- 👤 Raymond E Knoche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:13
CPC Classifications
B; B21; B21J; B21J15/00; B21J15/10; B21J15/30; B21J15/32; B65; B65G; B65G47/00; B65G47/02; B65G47/04; B65G47/12; B65G47/14; B65G47/1407; B65G47/1414; B65G47/1428
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1086210A
Cited
US1260518A
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US1485187A
Cited
US1966443A
Cited
US2615565A
Cited
US2598973A
Cited
US2596958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-21 | 1964-08-22 | 1965-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-21 | 1968-08-22 | 1969-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-21 | 1972-08-22 | 1973-02-21 | $7700.00 | Window Closed / Lapsed |