Patent US2967593A successfully refreshed from Google Patents.
US2967593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural spacer
Assignee: Delron Co Inc
•
Filing: 1958-01-29
•
Granted: 1961-01-10
•
Expires: 1978-01-29
Abstract
No abstract record available.
Inventors
- 👤 Kenneth V Cushman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:31
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/01; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10S411/967; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/4992; Y10T29/49925; Y10T29/49934; Y10T29/49938; Y10T29/4994
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1893481A
Cited
US1835243A
Cited
DE622537C
Cited
US2334773A
Cited
US2372485A
Cited
US2784636A
Cited
US2700172A
Cited
US2808136A
Cited
US2779979A
Cited
US2767877A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |