Patent US3169683A successfully refreshed from Google Patents.
US3169683A
Expired / Lapsed
US
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Method of breaking glass by impacting the surface opposite a pre-scored line
Assignee: Individual
•
Filing: 1964-10-06
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Granted: 1965-02-16
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Expires: 1984-10-06
Abstract
No abstract record available.
Inventors
- 👤 Burdette H Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:03
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/30; B23; B23D; B23D49/00; B23D49/10; B23D49/16; B23D49/162; B23D49/167; B25; B25D; B25D11/00; B28D1/22; B28D1/225; B28D1/26; C; C03; C03B; C03B33/00; C03B33/02; C03B33/04; C03B33/10; C03B33/12; Y; Y10; Y10T; Y10T225/00; Y10T225/10; Y10T225/12; Y10T225/30; Y10T225/371
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) | 1968-02-16 | 1968-08-17 | 1969-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-16 | 1972-08-17 | 1973-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-16 | 1976-08-17 | 1977-02-16 | $7700.00 | Window Closed / Lapsed |