US2730175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Punch for automatically locating the apertures in a jet-cup
Assignee: Celanese Corp
•
Filing: 1950-09-29
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Granted: 1956-01-10
•
Expires: 1970-09-29
Abstract
No abstract record available.
Inventors
- 👤 Rene P Piperoux
- 👤 Arpad P Berger
- 👤 Ferdinand P Diemer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:33
CPC Classifications
B; B21; B21D; B21D31/00; B21D31/02; B23; B23P; B23P15/00; B23P15/16; B25; B25D; B25D5/00; B25D5/02; B26; B26D; B26D7/00; B26D7/01; B26F; B26F1/00; B26F1/02; Y; Y10; Y10T; Y10T83/00; Y10T83/02; Y10T83/101; Y10T83/444; Y10T83/4607
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US163904A
Cited
US1514353A
Cited
US1612120A
Cited
US1670648A
Cited
US2414384A
Cited
US2148221A
Cited
US2115402A
Cited
US2130235A
Cited
US2194170A
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US2403605A
Cited
US2379028A
Cited
US2381039A
Cited
US2582221A
Cited
US2567202A
Cited
US2475217A
Cited
US2537498A
Cited
US2536850A
Cited
US2436172A
Cited
US2584897A
Cited
US2533914A
Cited
US2543950A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |