Patent US1731439A successfully refreshed from Google Patents.
Patent US5026350A successfully refreshed from Google Patents.
US3226900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spaced wall and facing panels with two piece securing means
Assignee: Individual
•
Filing: 1961-12-28
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Granted: 1966-01-04
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Expires: 1981-12-28
Abstract
No abstract record available.
Inventors
- 👤 Blomqvist John Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:48
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0801; E04F13/0832; E04F13/0833; E04F13/0846; E04F13/0848
Claims Analysis
Total Claims: 0
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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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |