US2187303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastener member and fastener installation
Assignee: ELECTRICAL RES LAB Inc
•
Filing: 1938-09-21
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Granted: 1940-01-16
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Expires: 1958-09-21
Abstract
No abstract record available.
Inventors
- 👤 Vito Albert De
- 👤 Liessmann Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:12
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/02; H05K7/12; Y; Y10; Y10S; Y10S411/00; Y10S411/918; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45471; Y10T24/45476; Y10T24/45524; Y10T24/45529; Y10T24/45534
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-01-15 | 1943-07-17 | 1944-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-01-15 | 1947-07-17 | 1948-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-01-15 | 1951-07-17 | 1952-01-16 | $7700.00 | Window Closed / Lapsed |