Patent US2698560A successfully refreshed from Google Patents.
US2698560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete expansion joint
Assignee: Individual
•
Filing: 1947-03-04
•
Granted: 1955-01-04
•
Expires: 1967-03-04
Abstract
No abstract record available.
Inventors
- 👤 The Union Savings Trus Company
- 👤 Carl J Heltzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:01
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/02; E01C11/04; E01C11/14; E01C11/12; E01C11/126; Y; Y10; Y10S; Y10S52/00; Y10S52/07
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2254885A
Cited
US2148773A
Cited
US1739102A
Cited
GB321495A
Cited
DE562495C
Cited
US2072381A
Cited
US2050290A
Cited
US2201824A
Cited
US2244315A
Cited
US2319049A
Cited
US2330213A
Cited
US2342181A
Cited
US2479434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-03 | 1958-07-05 | 1959-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-03 | 1962-07-05 | 1963-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-03 | 1966-07-05 | 1967-01-04 | $7700.00 | Window Closed / Lapsed |