US3435574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion joint covers
Assignee: EDWARD C HALLOCK
•
Filing: 1966-07-25
•
Granted: 1969-04-01
•
Expires: 1986-07-25
Abstract
No abstract record available.
Inventors
- 👤 Edward C Hallock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:53
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/68; E04B1/6803; E04B1/6804; E04B1/681; E04B5/00; E04B5/02; E04B5/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2035476A
Cited
US2160758A
Cited
US2226886A
Cited
US3270474A
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US3183626A
Cited
US3331171A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |