Patent US1933823A successfully refreshed from Google Patents.
Patent US3438165A successfully refreshed from Google Patents.
US3438165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic moulded building member
Assignee: Individual
•
Filing: 1967-12-15
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Granted: 1969-04-15
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Expires: 1987-12-15
Abstract
No abstract record available.
Inventors
- 👤 Janusz Morawski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:20
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/02; E04B2/14; E04B2/16; E04B2/18; E04C; E04C1/00; E04C1/40; E04B2002/0202; E04B2002/0204; E04B2002/0243
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR496022A
Cited
US1604391A
Cited
US1949079A
Cited
GB470061A
Cited
US2512550A
Cited
US2688245A
Cited
US2691242A
Cited
GB795078A
Cited
US3180059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |