US2680370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Masonry joint structure
Assignee: Individual
•
Filing: 1950-07-01
•
Granted: 1954-06-08
•
Expires: 1970-07-01
Abstract
No abstract record available.
Inventors
- 👤 Harold L Spaight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:37
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/68; E04B1/6812; Y; Y10; Y10S; Y10S52/00; Y10S52/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US639961A
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US1033431A
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US1122866A
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US1280173A
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US1997546A
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US1806275A
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US1953846A
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US2125857A
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US2042408A
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US2140997A
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US2174940A
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US2457908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-07 | 1957-12-07 | 1958-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-07 | 1961-12-07 | 1962-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-07 | 1965-12-07 | 1966-06-08 | $7700.00 | Window Closed / Lapsed |