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US2853871A
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Expansion joints for insulation structures
Assignee: Individual
•
Filing: 1954-09-14
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Granted: 1958-09-30
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Expires: 1974-09-14
Abstract
No abstract record available.
Inventors
- 👤 Jerry B Compton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:32
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/68; E04B1/6803; F; F16; F16L; F16L59/00; F16L59/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1308889A
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US668366A
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US1252913A
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US1357713A
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US1440162A
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US1981314A
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US1953846A
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US1918554A
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US2086886A
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US2323297A
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US2656902A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |