US3528418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anesthetic vaporizing apparatus
Assignee: Air Shields Inc
•
Filing: 1967-07-03
•
Granted: 1970-09-15
•
Expires: 1987-07-03
Abstract
No abstract record available.
Inventors
- 👤 James R Grosholz
- 👤 Harry J Lowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:38
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/10; A61M16/14; A61M16/18; B; B01; B01F; B01F23/00; B01F23/10; B01F23/12; A61M16/1005; A61M16/1015; A61M16/105; A61M16/106; A61M16/107; Y; Y10; Y10S; Y10S261/00; Y10S261/65; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837
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) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |