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US3530547A
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Break-away rope fastener
Assignee: MELVIN L ROBINSON
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Filing: 1968-04-03
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Granted: 1970-09-29
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Expires: 1988-04-03
Abstract
No abstract record available.
Inventors
- 👤 Melvin L Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:03
CPC Classifications
F; F16; F16G; F16G11/00; F16G11/10; F16G11/08; Y; Y10; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45471; Y10T24/45524; Y10T24/45592; Y10T403/00; Y10T403/36; Y10T403/364; Y10T403/49; Y10T403/4916
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US177122A
Cited
US513746A
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US723339A
Cited
US1703579A
Cited
US1774347A
Cited
US2530031A
Cited
US2704681A
Cited
US2917722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |