US3381428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exposed lock log joining system
Assignee: UNITIZED Manufacturing Ltd
•
Filing: 1967-08-22
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Granted: 1968-05-07
•
Expires: 1987-08-22
Abstract
No abstract record available.
Inventors
- 👤 Leimu A Sillman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:55
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/56; E04B2/70; E04B2/701; E04B2/702; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |