US2975822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for embedding beads in a sheet
Assignee: AT&T Inc
•
Filing: 1947-12-31
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Granted: 1961-03-21
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Expires: 1967-12-31
Abstract
No abstract record available.
Inventors
- 👤 Edgar W Gent
- 👤 Walter W Werring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:02
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/58; B29C70/64; B29L; B29L2007/00; B29L2007/002; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10S; Y10S264/00; Y10S264/78; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1734; Y10T156/1744; Y10T156/1751; Y10T156/1754; Y10T156/1756; Y10T156/1768; Y10T156/1771; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49934; Y10T29/49945
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) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |