US1177326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making refracting and diffusing containers for incandescent lights.
Assignee: Individual
•
Filing: 1914-06-17
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Granted: 1916-03-28
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Expires: 1934-06-17
Abstract
No abstract record available.
Inventors
- 👤 Peter Cooper Hewitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:46
CPC Classifications
H; H10; H10P; H10P95/00; G; G03; G03F; G03F7/00; G03F7/0002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1919-03-28 | 1919-09-27 | 1920-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-03-28 | 1923-09-27 | 1924-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-03-28 | 1927-09-27 | 1928-03-28 | $7700.00 | Window Closed / Lapsed |