US4060953B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
US4060953B1 - - Google Patents
Assignee: Balfour Beatty and Co Ltd
•
Filing: 1973-10-30
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Granted: 1986-02-11
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Expires: 1993-10-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:45
CPC Classifications
E; E02; E02D; E02D37/00; C; C04; C04B; C04B41/00; C04B41/45; C04B41/4505; C04B41/4515; E04; E04G; E04G23/00; E04G23/02; E04G23/0203; E04G23/0211; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49718; Y10T29/49746
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-10 | 1989-08-12 | 1990-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-10 | 1993-08-12 | 1994-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-10 | 1997-08-12 | 1998-02-11 | $7700.00 | Window Closed / Lapsed |