US3485003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall construction and brick spacer arrangement
Assignee: Individual
•
Filing: 1967-12-14
•
Granted: 1969-12-23
•
Expires: 1987-12-14
Abstract
No abstract record available.
Inventors
- 👤 Wallace Mcdowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:58
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/84; E04B2/86; E04B2/8647; E04B2/02; E04B2/04; E04B2/06; E04B2/28; E04B2/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US442375A
Cited
US1053231A
Cited
US1835524A
Cited
US1831163A
Cited
US3100953A
Cited
US3411257A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |