US2776559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Block wall
Assignee: Individual
•
Filing: 1952-09-03
•
Granted: 1957-01-08
•
Expires: 1972-09-03
Abstract
No abstract record available.
Inventors
- 👤 Summers Otto Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:21
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/02; E04B2/14; E04B2/16; E04B2002/0256; E04B2002/028; E04B2002/0282
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2055184A
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US860927A
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US1070921A
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US1186592A
Cited
US1742103A
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US1870926A
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US2198399A
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US2313211A
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US2329189A
Cited
US2546356A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |