US2635274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swab
Assignee: Individual
•
Filing: 1950-09-08
•
Granted: 1953-04-21
•
Expires: 1970-09-08
Abstract
No abstract record available.
Inventors
- 👤 Sarah A Hatcher
- 👤 Joe P Hatcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:08
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/20; A47L13/24; A47L13/254; A47L13/256
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1185564A
Cited
US1494171A
Cited
US1596663A
Cited
US1879552A
Cited
GB370770A
Cited
US2301505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-20 | 1956-10-20 | 1957-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-20 | 1960-10-20 | 1961-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-20 | 1964-10-20 | 1965-04-21 | $7700.00 | Window Closed / Lapsed |