Patent US3545731A successfully refreshed from Google Patents.
US3545731A
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Apparatus for producing bubbles of very small,microscopic size
Assignee: General Dynamics Corp
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Filing: 1966-11-08
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Granted: 1970-12-08
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Expires: 1986-11-08
Abstract
No abstract record available.
Inventors
- 👤 Donald S Mcmanus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:53
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/237; B01F23/2373; B01F23/232; B01F25/00; B01F25/30; B01F25/31; B01F25/312; B01F25/3124; B01F25/31241; B01F25/313; B01F25/3133; B01F25/31331; B01F25/313311; C; C02; C02F; C02F1/00; C02F1/72; C02F1/76; C02F1/763; C02F3/00; C02F3/02; C02F3/12; C02F3/20; B01F2215/00; B01F2215/04; B01F2215/0413; B01F2215/0418; B01F2215/0431; B01F23/231; B01F23/23105; B01F23/2312; B01F23/23123; B01F23/2376; B01F23/23761; B01F23/237611; Y; Y02; Y02W; Y02W10/00; Y02W10/10
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) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |