US2881614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building or construction blocks
Assignee: Individual
•
Filing: 1955-08-31
•
Granted: 1959-04-14
•
Expires: 1975-08-31
Abstract
No abstract record available.
Inventors
- 👤 Preininger Milos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:31
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/02; E04B2/14; E04B2/16; E04B2/18; E04B2002/0202; E04B2002/0243; E04B2002/0247
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US384541A
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FR958569A
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US934061A
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AT85566B
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US1686757A
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US2106177A
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AT163049B
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CH277553A
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DE806046C
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CH283305A
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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 |