Patent US3396944A successfully refreshed from Google Patents.
US3396944A
Expired / Lapsed
US
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Jacking systems for use in the construction of buildings
Assignee: Richard Costain Ltd
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Filing: 1966-03-28
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Granted: 1968-08-13
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Expires: 1986-03-28
Abstract
No abstract record available.
Inventors
- 👤 Jansz Joost Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:40
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/46; B66F3/24; B66F3/25; B66F3/30; E; E04; E04B; E04B1/00; E04B1/35; E04B1/3511; E04G; E04G21/00; E04G21/14; E04G21/16; E04G21/163; F; F15; F15B; F15B15/00; F15B15/02; F15B15/06; F15B15/061
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) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |