US2881613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced brick masonry wall and brick therefor
Assignee: STRUCTURAL CLAY PRODUCTS RES F
•
Filing: 1955-06-23
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Granted: 1959-04-14
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Expires: 1975-06-23
Abstract
No abstract record available.
Inventors
- 👤 Robert B Taylor
- 👤 Paul V Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:12
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/02; E04B2/04; E04B2/06; E04B2/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US591788A
Cited
US1039313A
Cited
GB191320366A
Cited
FR587987A
Cited
US1675093A
Cited
US1661739A
Cited
US1771302A
Cited
US2033831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |