US2721043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic spinning cone
Assignee: Pm Ind Inc
•
Filing: 1952-04-15
•
Granted: 1955-10-18
•
Expires: 1972-04-15
Abstract
No abstract record available.
Inventors
- 👤 Zoltan N Meretey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:24
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H75/10; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US678540A
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US1204517A
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US1713746A
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FR640141A
Cited
US1993143A
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US2076451A
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GB499138A
Cited
US2219836A
Cited
US2429431A
Cited
US2484756A
Cited
US2432270A
Cited
US2605979A
Cited
US2666693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |