US2942899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling means for building scaffolds, racks, frameworks, and the like
Assignee: Individual
•
Filing: 1959-10-08
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Granted: 1960-06-28
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Expires: 1979-10-08
Abstract
No abstract record available.
Inventors
- 👤 Louis L Rifken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:57
CPC Classifications
E; E04; E04G; E04G7/00; E04G7/02; E04G7/06; E04G7/24; F; F16; F16B; F16B7/00; F16B7/04; F16B7/044; F16B7/048; F16B7/0493; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/34; Y10T24/3427; Y10T403/00; Y10T403/71; Y10T403/7129; Y10T403/7141
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) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |