Patent US2580034A successfully refreshed from Google Patents.
US2580034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Covered expansion joint
Assignee: Patent and Licensing Corp
•
Filing: 1948-12-18
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Granted: 1951-12-25
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Expires: 1968-12-18
Abstract
No abstract record available.
Inventors
- 👤 Richard T Lyons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:34
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/68; E04B1/6803
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1740110A
Cited
FR498342A
Cited
US1357713A
Cited
US1427901A
Cited
US1427558A
Cited
US1559749A
Cited
FR606106A
Cited
US1728275A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |