Patent US3049753A successfully refreshed from Google Patents.
US3049753A
Expired / Lapsed
US
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Spinnerette
Assignee: Engelhard Industries Inc
•
Filing: 1959-04-29
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Granted: 1962-08-21
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Expires: 1979-04-29
Abstract
No abstract record available.
Inventors
- 👤 Ogden Joseph
- 👤 Percy J Armeny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:23
CPC Classifications
C; C22; C22C; C22C29/00; C22C29/02; C22C29/06; C22C29/067; D; D01; D01D; D01D4/00; D01D4/02; D01D4/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2001017A
Cited
GB390236A
Cited
US2094570A
Cited
US2341555A
Cited
GB702936A
Cited
US2839783A
Cited
US2753261A
Cited
US2731711A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |