US2695512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow constructional block
Assignee: Individual
•
Filing: 1948-03-19
•
Granted: 1954-11-30
•
Expires: 1968-03-19
Abstract
No abstract record available.
Inventors
- 👤 Paquet Pierre Norbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:40
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/02; E04B2/14; E04B2002/0295
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1307179A
Cited
US1041245A
Cited
FR465102A
Cited
US1154546A
Cited
FR21481E
Cited
US1375288A
Cited
US1749166A
Cited
AU412626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |