US2928661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas and liquid mixing apparatus
Assignee: Individual
•
Filing: 1958-06-09
•
Granted: 1960-03-15
•
Expires: 1978-06-09
Abstract
No abstract record available.
Inventors
- 👤 Albert S Maclaren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:09
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/20; C02F3/205; C02F3/206; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/233; B01F23/2331; C02F3/207; B01F23/23311; B01F23/2336; B01F23/23364; B01F27/00; B01F27/05; B01F27/11; B01F27/112; B01F27/1125; B01F27/113; B01F27/19; B01F27/192; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US79048A
Cited
US653746A
Cited
GB191219836A
Cited
US1445935A
Cited
US1417883A
Cited
US1925777A
Cited
FR762263A
Cited
US2194037A
Cited
US2187746A
Cited
US2293183A
Cited
US2592904A
Cited
US2767965A
Cited
BE506758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |