US4479466B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Natural gas and air mixing device
Assignee: GLOBAL ENVIRONMENTAL INDUSTRIES Inc
•
Filing: 1983-11-22
•
Granted: 1986-07-29
•
Expires: 2003-11-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:48
CPC Classifications
F; F02; F02M; F02M13/00; F02M13/08; F02M21/00; F02M21/02; F02M21/04; F02M21/042; F02M35/00; F02M35/02; F02M35/024; F02M35/02475; F02M35/02483; F02M35/04; F02M35/042; F02B; F02B1/00; F02B1/02; F02B1/04; F02B43/00; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/30
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1989-07-28 | 1990-01-27 | 1990-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-28 | 1994-01-27 | 1994-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-28 | 1998-01-27 | 1998-07-29 | $7700.00 | Window Closed / Lapsed |