US2910987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tobacco smoking holder
Assignee: Combustion Research Inc
•
Filing: 1958-03-10
•
Granted: 1959-11-03
•
Expires: 1978-03-10
Abstract
No abstract record available.
Inventors
- 👤 Ross John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:21
CPC Classifications
A; A24; A24F; A24F13/00; A24F13/02; A24F13/04; A24F13/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US76119A
Cited
US80527A
Cited
US87444A
Cited
GB190317169A
Cited
US901915A
Cited
US1809529A
Cited
US2205553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |