US3067546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sleeve-shaped plug for a pin-shaped fastening member
Assignee: HET SPOORWEGBOUWBEDRIJF NV
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Filing: 1959-09-22
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Granted: 1962-12-11
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Expires: 1979-09-22
Abstract
No abstract record available.
Inventors
- 👤 Jacob L A Cuperus
- 👤 Machiel K Kleijn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:05
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/38; E04B1/41; E04B1/4171; F; F16; F16B; F16B13/00; F16B13/02; F16B13/12; F16B13/126; F16B2013/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH143334A
Cited
FR804235A
Cited
US2172125A
Cited
US2213818A
Cited
DE855902C
Cited
FR1106531A
Cited
FR1122536A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |