US2841193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for sawing sponge-like cellular glass
Assignee: ABER Co
•
Filing: 1956-03-02
•
Granted: 1958-07-01
•
Expires: 1976-03-02
Abstract
No abstract record available.
Inventors
- 👤 Paul E Petrofsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:20
CPC Classifications
B; B26; B26D; B26D3/00; B26D3/006; B27; B27B; B27B19/00; B27B19/006; B27B19/008; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49995; Y10T408/00; Y10T408/39; Y10T408/65; Y10T408/655; Y10T83/00; Y10T83/02; Y10T83/869; Y10T83/8798; Y10T83/8804; Y10T83/8808
Claims Analysis
Total Claims: 0
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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) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |