US3430544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Devices for sealing expansion joints in bridge decking
Assignee: Expandite Ltd
•
Filing: 1966-11-25
•
Granted: 1969-03-04
•
Expires: 1986-11-25
Abstract
No abstract record available.
Inventors
- 👤 Colin John Berks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:06
CPC Classifications
E; E01; E01D; E01D19/00; E01D19/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US587846A
Cited
US1122866A
Cited
US2286019A
Cited
US2416584A
Cited
FR1227609A
Cited
US3183626A
Cited
US3344720A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |