Patent US3369831A successfully refreshed from Google Patents.
US3369831A
Expired / Lapsed
US
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Cover strip in expansion and contraction joints
Assignee: JAMES R MCKINNIE
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Filing: 1966-01-21
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Granted: 1968-02-20
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Expires: 1986-01-21
Abstract
No abstract record available.
Inventors
- 👤 James R Mckinnie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:05
CPC Classifications
E; E04; E04F; E04F19/00; E04F19/02; E04F19/06; E04F19/062; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/68; E04B1/6809
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |