Patent US2664739A successfully refreshed from Google Patents.
US2664739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tile covered, fireproofed structural element
Assignee: Individual
•
Filing: 1948-01-02
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Granted: 1954-01-05
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Expires: 1968-01-02
Abstract
No abstract record available.
Inventors
- 👤 John P Marcy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:16
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/92; E04B1/94; E04B1/941; E04B1/943; E04B1/944
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1136874A
Cited
FR325505A
Cited
GB191225140A
Cited
US1617762A
Cited
US1779721A
Cited
GB553655A
Cited
US2556878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |