Patent US3570075A successfully refreshed from Google Patents.
US3570075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circular clothespin
Assignee: Individual
•
Filing: 1969-03-03
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Granted: 1971-03-16
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Expires: 1989-03-03
Abstract
Abstract ALTHOUGH PRIMARILY A CIRCULAR CLOTHSPIN, THE DISCLOSED INVENTION IS CAPABLE OF RELIABLE USE FOR MOUNTING SIDE-BYSIDE CLOTHSLINES TOP T-SHAPED OUTDOOR LINE SUPPORTS. IT IS ALSO USABLE AS A CHRISTMAS TREE ORNAMENT AND AS A COMPONENT IN A TOY ERECTION SET FOR CHILDREN. IT COMPRISES A ONE-PIECE PLASTIC SPOOL AND EMBODIES OPPOSED PLASTIC DISKS UNITED BY A HOLLOW HUB. THESE DISKS ARE MADE OF RESILIENT PLASTIC MATERIAL AND ARE PROVIDED WITH RADIAL SPOKES AND INTENAL BOSSES WHICH PROVIDE LINE POSITIONING AND RETAINING DETENTS.
Inventors
- 👤 Charles R Louderback
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:25
CPC Classifications
D; D06; D06F; D06F55/00; D06F57/00; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44017; Y10T24/44641; Y10T24/44769; Y10T24/44906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |