Patent US3371456A successfully refreshed from Google Patents.
US3371456A
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US
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Expansion joint cover
Assignee: Balco Inc
•
Filing: 1965-06-01
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Granted: 1968-03-05
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Expires: 1985-06-01
Abstract
No abstract record available.
Inventors
- 👤 Claude P Balzer
- 👤 Edward M Corman
- 👤 Almer A Reiff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:46
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/68; E04B1/6803; E04B1/6804
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1122866A
Cited
US2160758A
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US2226886A
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US2511074A
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US2904992A
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US3052330A
Cited
US3170268A
Cited
US3270474A
Cited
US3183626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |