Patent US3448958A successfully refreshed from Google Patents.
US3448958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastening device for scaffolds
Assignee: Individual
•
Filing: 1967-03-08
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Granted: 1969-06-10
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Expires: 1987-03-08
Abstract
No abstract record available.
Inventors
- 👤 Jalmari Selim Virkki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:47
CPC Classifications
E; E04; E04G; E04G5/00; E04G5/04; E04G21/00; E04G21/32; E04G21/3261; E04G21/3276; F; F16; F16L; F16L3/00; F16L3/02; F16L3/04; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3991
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) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |