US3518393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bloodwarmers
Assignee: South African Inventions Development Corp
•
Filing: 1968-11-19
•
Granted: 1970-06-30
•
Expires: 1988-11-19
Abstract
No abstract record available.
Inventors
- 👤 Johann Lodewyk Naude Besseling
- 👤 Arthur Barclay Bull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:36
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/62; A; A61; A61M; A61M5/00; A61M5/44; A61M5/445; F; F24; F24H; F24H1/00; F24H1/22; F24H1/225; G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/24; H05B6/48; H05B6/50; A61M1/00; A61M1/02; A61M1/025; A61M2205/00; A61M2205/36; A61M2205/368; A61M2205/3686
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |