US2551311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of shaping and annealing glass articles
Assignee: Toledo Engineering Co Inc
•
Filing: 1948-08-26
•
Granted: 1951-05-01
•
Expires: 1968-08-26
Abstract
No abstract record available.
Inventors
- 👤 George W Batchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:13
CPC Classifications
C; C03; C03B; C03B35/00; C03B35/14; C03B35/20; C03B35/202; C03B35/205; C03B23/00; C03B23/02; C03B23/023; C03B23/03; C03B23/031; C03B23/0315; C03B25/00; C03B25/04; C03B25/06; C03B25/08; C03B25/087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1125468A
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US1259459A
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US2131873A
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US2057763A
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US2251159A
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US2176999A
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US2370575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-30 | 1954-10-30 | 1955-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-30 | 1958-10-30 | 1959-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-30 | 1962-10-30 | 1963-05-01 | $7700.00 | Window Closed / Lapsed |