Patent US5195937A successfully refreshed from Google Patents.
Patent US3389929A successfully refreshed from Google Patents.
US3389929A
Expired / Lapsed
US
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Adjustable two-part separable i-beam connector
Assignee: General Electric Co
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Filing: 1966-03-31
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Granted: 1968-06-25
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Expires: 1986-03-31
Abstract
No abstract record available.
Inventors
- 👤 Walter D Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:19
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/24; E04B1/2403; E04B1/343; E04B1/344; E04B1/3441; E04B2001/2448; E04B1/38; E04B1/58; E04B2001/5868; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32114; Y10T403/32163; Y10T403/32172
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) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |