US2703004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Block construction
Assignee: Individual
•
Filing: 1950-08-18
•
Granted: 1955-03-01
•
Expires: 1970-08-18
Abstract
No abstract record available.
Inventors
- 👤 Frank J Kenedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:41
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/38; E04B1/61; E04B1/6108; E04B1/612; E04B1/6145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US605468A
Cited
US1122866A
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US1297906A
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US2049733A
Cited
US2235114A
Cited
US2257001A
Cited
US2259778A
Cited
US2245785A
Cited
US2303091A
Cited
US2357525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-28 | 1958-08-30 | 1959-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-28 | 1962-08-30 | 1963-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-28 | 1966-08-30 | 1967-03-01 | $7700.00 | Window Closed / Lapsed |