US2930384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of dispensing neutralizing solution
Assignee: RILLING DERMETICS Co
•
Filing: 1955-12-30
•
Granted: 1960-03-29
•
Expires: 1975-12-30
Abstract
No abstract record available.
Inventors
- 👤 Robert J Strain
- 👤 Tranner Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:27
CPC Classifications
A; A45; A45D; A45D7/00; A45D7/04; A45D34/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US20110A
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US1908398A
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US2633447A
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US2671424A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |