US2822599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clay pipe perforating machine
Assignee: Individual
•
Filing: 1953-10-22
•
Granted: 1958-02-11
•
Expires: 1973-10-22
Abstract
No abstract record available.
Inventors
- 👤 Cecil E Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:12
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/92; B28B1/00; B28B1/48; Y; Y10; Y10S; Y10S264/00; Y10S264/70; Y10S425/00; Y10S425/037; Y10T; Y10T408/00; Y10T408/16; Y10T408/17; Y10T408/173; Y10T408/36; Y10T408/38; Y10T408/3833; Y10T408/3839; Y10T408/52; Y10T408/65; Y10T408/675; Y10T408/6757
Claims Analysis
Total Claims: 0
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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) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |