US2730529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spirocyclic esters of sulphurous acid and their use as pest combatting agents
Assignee: Novartis AG
•
Filing: 1954-05-14
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Granted: 1956-01-10
•
Expires: 1974-05-14
Abstract
No abstract record available.
Inventors
- 👤 Gatzi Karl
- 👤 Muller Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:35
CPC Classifications
C; C07; C07D; C07D317/00; C07D317/08; C07D317/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A SPIROCYCLIC ESTER OF SULPHUROUS ACID CORRESPONDING TO THE GENERAL FORMULA:
Claim 2
Dependent Claim
11 words
A SPIROCYCLIC ESTER OF SULPHUROUS ACID CORRESPONDING TO THE GENERAL FORMULA:
References Cited (Backward Citations)
US2377148A
Cited
US2529494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |