Patent US3477337A successfully refreshed from Google Patents.
US3477337A
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Universal internal thread fastener assembly
Assignee: JOHN A RACKI
•
Filing: 1968-02-27
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Granted: 1969-11-11
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Expires: 1988-02-27
Abstract
No abstract record available.
Inventors
- 👤 John A Racki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:02
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B13/00; F16B13/02; F16B19/00; F16B19/02; F16B35/00; F16B35/04; F16B35/041; Y; Y10; Y10S; Y10S411/00; Y10S411/90; Y10S411/901; Y10S411/902; Y10S411/903; Y10S411/924; Y10S411/929; Y10S411/938
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2774098A
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US2745521A
Cited
US3124188A
Cited
DE1191633B
Cited
US3042961A
Cited
US3191864A
Cited
US3319918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |