US3501110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic spool and method of making same
Assignee: Nicholson File Co
•
Filing: 1967-01-24
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Granted: 1970-03-17
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Expires: 1987-01-24
Abstract
No abstract record available.
Inventors
- 👤 Robert B Hopgood
- 👤 Ivar Green
- 👤 David W Knowles Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:55
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/06; B29C65/0672; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/12; B29C66/124; B29C66/1244; B29C66/12445; B29C66/12449; B29C66/1246; B29C66/12463; B29C66/12469; B29C66/50; B29C66/51; B29C66/53; B29C66/534; B29C66/5344; B29C66/61; B29C66/612; B29C66/80; B29C66/83; B29C66/832; B29C66/8322; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H75/14; B29L; B29L2031/00; B29L2031/704; B65H2701/00; B65H2701/30; B65H2701/31; B65H2701/50; B65H2701/51; B65H2701/513; B65H2701/5136
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |