US2720213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injector for dry cleaning apparatus
Assignee: Individual
•
Filing: 1951-06-14
•
Granted: 1955-10-11
•
Expires: 1971-06-14
Abstract
No abstract record available.
Inventors
- 👤 Jr George E Whitcomb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:24
CPC Classifications
D; D06; D06F; D06F43/00; D06F43/005; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3112; Y10T137/8593; Y10T137/86187; Y10T137/86196
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US193007A
Cited
US564212A
Cited
DE323415C
Cited
GB202477A
Cited
US1917704A
Cited
US1808956A
Cited
US1911289A
Cited
US2158614A
Cited
US2058309A
Cited
US2120608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |