Patent EP0446956A2 successfully refreshed from Google Patents.
US2431384A
Expired / Lapsed
US
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Self-restoring water-stop and other waterproofing packings
Assignee: Individual
•
Filing: 1945-01-26
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Granted: 1947-11-25
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Expires: 1965-01-26
Abstract
No abstract record available.
Inventors
- 👤 Albert C Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:52
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/68; E04B1/6812; E01; E01C; E01C11/00; E01C11/02; E01C11/04; E01C11/10; E01C11/106; Y; Y10; Y10S; Y10S52/00; Y10S52/07; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1375925A
Cited
US1664606A
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US2106944A
Cited
US2086393A
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US2172773A
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US2368650A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-24 | 1951-05-26 | 1951-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-24 | 1955-05-26 | 1955-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-24 | 1959-05-26 | 1959-11-25 | $7700.00 | Window Closed / Lapsed |