Patent US2921464A successfully refreshed from Google Patents.
US2921464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building structure clip means
Assignee: Individual
•
Filing: 1955-03-10
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Granted: 1960-01-19
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Expires: 1975-03-10
Abstract
No abstract record available.
Inventors
- 👤 Anders C Olsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:26
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/56; E04B2/58; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44641; Y10T24/44769; Y10T24/44778; Y10T24/44821
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA505702A
Cited
US1069471A
Cited
US1969244A
Cited
US2307899A
Cited
US2322657A
Cited
US2347961A
Cited
US2604776A
Cited
US2711643A
Cited
US2669862A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |